This crossword No. 493 clues and answers were published on Sun 20 Feb 2005 and the puzzle can be visited by following The Guardian Speedy Crossword No. 493 link.
All Across Clues and Answers:
1-across – Indicate uncertainty : BEINTWOMINDS
9-across – Happen : OCCUR
10-across – Large, powerful short-haired dog : MASTIFF
11-across – Approach : NEAR
12-across – Writ : SUBPOENA
14-across – Voracious : HUNGRY
15-across – Make colourless : BLEACH
18-across – English county town : HERTFORD
20-across – Unfermented soya bean curd : TOFU
22-across – Submitting for consideration : TABLING
23-across – Garden implement : SPADE
24-across – ‘…that bit one’ completes a hangover remedy : HAIROFTHEDOG
All Down Clues and Answers:
2-down – Shackle : ENCHAIN
3-down – Average : NORM
4-down – Native American shells used as money : WAMPUM
5-down – Appropriate for the wrong use : MISAPPLY
6-down – Artless : NAIVE
7-down – Thoroughly secure : SAFEASHOUSES
8-down – 24’s toast, perhaps! : DOWNTHEHATCH
13-down – Scratching on walls, pottery, etc : GRAFFITO
16-down – Dull greenish colour : AVOCADO
17-down – Properly : ARIGHT
19-down – Jewish spiritual leader : RABBI
21-down – Eyot : ISLE
This crossword has in total 24 where 12 are across and 12 are down.