This crossword No. 10612 clues and answers were published on Tue 11 May 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10612 link.
All Across Clues and Answers:
1-across – Arduous bit of work : TASK
3-across – Underwear : KNICKERS
8-across – Large military body : ARMY
9-across – Next : ADJACENT
11-across – Compulsory isolation to prevent spread of disease : QUARANTINE
14-across – Draw breath : INHALE
15-across – Collision : IMPACT
17-across – Sudden overpowering military attack : BLITZKRIEG
20-across – Goodbye : FAREWELL
21-across – Travel permit : VISA
22-across – Shy – going to bed : RETIRING
23-across – Crooked : BENT
All Down Clues and Answers:
1-down – Peaceful : TRANQUIL
2-down – Compassion : SYMPATHY
4-down – Nakedness : NUDITY
5-down – Get through fags one after the other : CHAINSMOKE
6-down – Not odd : EVEN
7-down – Location : SITE
10-down – One lacking a partner – garden plant : WALLFLOWER
12-down – Make as large as possible : MAXIMISE
13-down – Brackish and foul : STAGNANT
16-down – Purloined : STOLEN
18-down – A long way off : AFAR
19-down – Ill-mannered child : BRAT
This crossword has in total 24 where 12 are across and 12 are down.