This crossword No. 10512 clues and answers were published on Thu 15 Jan 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10512 link.
All Across Clues and Answers:
1-across – Nonsense : POPPYCOCK
8-across – Thus : ERGO
9-across – Explosive mixture : GUNPOWDER
10-across – Abnormal growth : CYST
13-across – Swedish car : VOLVO
15-across – Male former pupil : OLDBOY
16-across – Long : ECLAIR
17-across – Nonsense : BUNKUM
19-across – Gathering of wandering geese : GAGGLE
20-across – Gobbled : EATEN
21-across – Eye part : IRIS
24-across – To be plucked : PIZZICATO
25-across – Dash : ELAN
26-across – Device to help regulate tempo : METRONOME
All Down Clues and Answers:
2-down – Responsibility : ONUS
3-down – Stage of an insect’s development : PUPA
4-down – Wild West rancher – unscrupulous workman : COWBOY
5-down – Divide – cling : CLEAVE
6-down – Dispute : ARGYBARGY
7-down – Fashion designer : COUTURIER
11-down – Book of little merit designed to make a quick profit : POTBOILER
12-down – The same : IDENTICAL
13-down – Fashion : VOGUE
14-down – One of the Seven Seas : OCEAN
18-down – Of the sea : MARINE
19-down – Diamond bloke? : GEEZER
22-down – Study intently : SCAN
23-down – Elementary particle : ATOM
This crossword has in total 28 where 14 are across and 14 are down.