This crossword No. 10592 clues and answers were published on Sat 17 Apr 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10592 link.
All Across Clues and Answers:
1-across – Very close together : CHEEKBYJOWL
9-across – Persistent in holding on : TENACIOUS
10-across – Regret – herb : RUE
11-across – Heath plant : ERICA
13-across – Retractable panel in car : SUNROOF
14-across – Means of ascent : LADDER
15-across – Belgian city : BRUGES
18-across – French revolutionary : JACOBIN
20-across – Expression of unconcern : SHRUG
21-across – Small bed : COT
22-across – Blonde out : DOUBLETON
24-across – Lounge : DRAWINGROOM
All Down Clues and Answers:
2-down – Barbarian : HUN
3-down – Part of country surrounded by another : ENCLAVE
4-down – Fat and flushed : BLOWSY
5-down – Greek hero, captain of the Argo : JASON
6-down – Bellicose person : WARMONGER
7-down – Worker on tall chimneys etc : STEEPLEJACK
8-down – Book and concept of Richard Dawkins : SELFISHGENE
12-down – Pointer : INDICATOR
16-down – Cattle thief : RUSTLER
17-down – One after another : INTURN
19-down – Moisten : BEDEW
23-down – A brace : TWO
This crossword has in total 24 where 12 are across and 12 are down.