1-across – Instrument with bellows : ACCORDION

8-across – Vibratory sound : WHIR

9-across – Pen : BALLPOINT

10-across – Rum and water : GROG

13-across – Rain/snow mix : SLEET

15-across – Aliens : SALINE

16-across – Member of the clergy : DEACON

17-across – Contaminated : IMPURE

19-across – Breakfast food : CEREAL

20-across – Nimble : LITHE

21-across – Empty : NULL

24-across – Place with population 0 : GHOSTTOWN

25-across – Open wide : GAPE

26-across – Angry head : HYDRANGEA

2-down – Pack tightly : CRAM

3-down – Lyon : ONLY

4-down – Simple picture : DOODLE

5-down – Grunted : OINKED

6-down – Letter : CHARACTER

7-down – ‘Darning needle’ insect : DRAGONFLY

11-down – Snooping and wiretapping? : ESPIONAGE

12-down – Casual footwear : FLIPFLOPS

13-down – Sound of angry dog : SNARL

14-down – Native American accommodation : TEPEE

18-down – LXXX : EIGHTY

19-down – Search : CHASER

22-down – Bowl over : STUN

23-down – Affectedly sentimental : TWEE

1-across – Conceited dignitary : HIGHMUCKAMUCK

8-across – Zero : NIL

9-across – Boxer’s plate : GUMSHIELD

10-across – Emergent : EVOLVING

11-across – Snitch : FINK

13-across – Judder : WOBBLE

14-across – Massachusetts city : BOSTON

16-across – Ice-skating jump : LUTZ

17-across – Fattened liver : FOIEGRAS

20-across – Invertebrate with many pairs of legs : CENTIPEDE

21-across – Boxing superstar : ALI

22-across – Phew! : THANKGOODNESS

1-down – Rest : HINGE

2-down – Water between Sweden and Finland : GULFOFBOTHNIA

3-down – Electromotive force unit : MEGAVOLT

4-down – Concrete powder : CEMENT

5-down – Painful : ACHY

6-down – Arrangement of information and options on screen : USERINTERFACE

7-down – Goat leather : KIDSKIN

12-down – Brow : FOREHEAD

13-down – Cougar,e.g. : WILDCAT

15-down – Spanish dance – jacket : BOLERO

18-down – From Zurich,e.g. : SWISS

19-down – Stoat-like carnivore : MINK

1-across – But it’s a large amount of money! : SMALLFORTUNE

9-across – Oz : OUNCE

10-across – Overkill : TOOMUCH

11-across – Pane : NEAP

12-across – Nonconformist – initial : ORIGINAL

14-across – Fire-breather? : DRAGON

15-across – Astronomical length – scrape : PARSEC

18-across – Feral feline : ALLEYCAT

20-across – Book’s wording : TEXT

22-across – Social climber or parvenu : UPSTART

23-across – Likewise : DITTO

24-across – House of Lords referred to in the Commons,or vice-versa : ANOTHERPLACE

2-down – Northwestern US state : MONTANA

3-down – Welsh vegetable? : LEEK

4-down – Fullness of time : FUTURE

5-down – Police outfit worn when controlling unruly crowds : RIOTGEAR

6-down – Complete change of opinion : UTURN

7-down – Bat’s navigation technique : ECHOLOCATION

8-down – Noble vampire? : COUNTDRACULA

13-down – Intellectual in various fields : POLYMATH

16-down – Cynic : SCEPTIC

17-down – Negotiate : BARTER

19-down – Horse catcher? : LASSO

21-down – Lido : IDOL

1-across – Resistant to breakdown : ROBUST

4-across – Internet company : DOTCOM

9-across – Vixen’s brush : FOXTAIL

10-across – Customer : BUYER

11-across – Signal of indifference : SHRUG

12-across – Mesmerise : BEWITCH

13-across – American football player : QUARTERBACK

18-across – Droll : AMUSING

20-across – Comedian – in the pack? : JOKER

22-across – : BEADY

23-across – Start of twilight : SUNDOWN

24-across – Fifty-fifty : EVENLY

25-across – Betting agent : BOOKIE

1-down – Litter : REFUSE

2-down – Sparring partner? : BOXER

3-down – Play to the crowd : SWAGGER

5-down – River’s meander : OXBOW

6-down – Descriptive of mysterious puzzle? : CRYPTIC

7-down – Quaggy : MARSHY

8-down – Dumbfound : FLABBERGAST

14-down – Howl loud and long : ULULATE

15-down – Good Lord! : BYJINGO

16-down – Sing like a songbird : WARBLE

17-down – Alloy figurine? : BRONZE

19-down – Garden of Eden? : IDYLL

21-down – Booth : KIOSK

1-across – Releases : LETSGO

4-across – Storehouse : DEPOT

7-across – Sovereign state in Borneo : BRUNEI

8-across – Complain incessantly : KVETCH

9-across – Arctic fish – hired help : CHAR

10-across – Take away : SUBTRACT

12-across – A firework : ROMANCANDLE

17-across – Reduce speed : SLOWDOWN

19-across – Well ventilated : AIRY

20-across – Smoothly effortless : FLUENT

21-across – Particularly handsome young man : ADONIS

22-across – Get stuck – branch of a society : LODGE

23-across – Asian river : MEKONG

1-down – Unsteady dog? : LURCHER

2-down – Fit of temper : TANTRUM

3-down – Musical slide – sing loads : GLISSANDO

4-down – Relax at home on a day named for this : DUVET

5-down – Unsuspected difficulty : PITFALL

6-down – Island in French Polynesia : TAHITI

11-down – Bright idea : BRAINWAVE

13-down – Sonorous – grandiloquent : OROTUND

14-down – Spinning top : DIABOLO

15-down – Stud,drop or hoop : EARRING

16-down – Fit for purpose : USEFUL

18-down – Charles or Charleston : DANCE