This crossword No. 12858 clues and answers were published on Wed 27 Jul 2011 and the puzzle can be visited by following The Guardian Quick Crossword No. 12858 link.
All Across Clues and Answers:
1-across – Highly corrosive liquid : SULPHURICACID
8-across – Clumsy fool : OAF
9-across – Two-sided : BILATERAL
10-across – Device for checking oil level : DIPSTICK
11-across – Unit of bread : LOAF
13-across – City and state of northwest Germany : BREMEN
14-across – Scoundrel : RASCAL
16-across – Meat : BEEF
17-across – Left-handed boxer : SOUTHPAW
20-across – The acts of man in Jaques’ list : SEVENAGES
21-across – Israeli sub-machine gun : UZI
22-across – Pretend not to see : TURNABLINDEYE
All Down Clues and Answers:
1-down – Cutting weapon : SWORD
2-down – Cosh : LIFEPRESERVER
3-down – Regular attenders : HABITUES
4-down – Widow : RELICT
5-down – Clever — attractive : CUTE
6-down – Ecologically important process — per bar account : CARBONCAPTURE
7-down – Dreary : DOLEFUL
12-down – : PARTISAN
13-down – Take charge to allow parents to go out : BABYSIT
15-down – Native of country bordering China : MONGOL
18-down – Bridal colour : WHITE
19-down – Girl — old Indian coin : ANNA
This crossword has in total 24 where 12 are across and 12 are down.