This crossword No. 9192 clues and answers were published on Mon 18 Oct 1999 and the puzzle can be visited by following The Guardian Quick Crossword No. 9192 link.
All Across Clues and Answers:
1-across – Staff – association : CLUB
3-across – Killer of prominent person : ASSASSIN
9-across – Be boisterous : ROISTER
10-across – Cheated : DUPED
11-across – Picture of attractive person : PINUP
12-across – Inner seed of nut : KERNEL
14-across – Subscriptions : CONTRIBUTIONS
17-across – Uncertain : UNSURE
19-across – Shady retreat : BOWER
22-across – Not illuminated : UNLIT
23-across – Rate ink : KERATIN
24-across – Old name for inn : HOSTELRY
25-across – Item of footwear : SHOE
All Down Clues and Answers:
1-down – Shell of tortoise : CARAPACE
2-down – Joining into one – association : UNION
4-down – Blackleg : STRIKEBREAKER
5-down – Viper : ADDER
6-down – Person with overall authority : SUPREMO
7-down – Knot – knob : NODE
8-down – Dazed state : STUPOR
13-down – Alienate : ESTRANGE
15-down – Perplex : NONPLUS
16-down – Short tunic, open at the sides : TABARD
18-down – Unfasten : UNTIE
20-down – Female practising black magic : WITCH
21-down – Shrub : BUSH
This crossword has in total 26 where 13 are across and 13 are down.