This crossword No. 10571 clues and answers were published on Wed 24 Mar 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10571 link.
All Across Clues and Answers:
1-across – Formula One’s Michael or Ralf : SCHUMACHER
7-across – Remove from a harness : UNHITCH
8-across – Pulsate : THROB
10-across – Brass instrument : TUBA
11-across – Writ : SUBPOENA
13-across – Muslim and Hindu custom of keeping women secluded : PURDAH
15-across – Brief : GLITCH
17-across – Occasional : SPORADIC
18-across – Food list : MENU
21-across – Greek letter – mouth of a river : DELTA
22-across – Occupation of catching swimmers : FISHING
23-across – Feat achieved : ATTAINMENT
All Down Clues and Answers:
1-down – Indian term of respect to a man : SAHIB
2-down – Detest : HATE
3-down – Indian elephant driver : MAHOUT
4-down – Y-shaped weapon associated with naughty boys : CATAPULT
5-down – Sincere : EARNEST
6-down – Placed next to for contrasting effect : JUXTAPOSED
9-down – Transport with balloon tyres for driving on sand : BEACHBUGGY
12-down – Indian prince : MAHARAJA
14-down – Small branch of a plant’s anchor : ROOTLET
16-down – Indian midday meal : TIFFIN
19-down – Decree : EDICT
20-down – Small area of land in water : ISLE
This crossword has in total 24 where 12 are across and 12 are down.