This crossword No. 11571 clues and answers were published on Fri 08 Jun 2007 and the puzzle can be visited by following The Guardian Quick Crossword No. 11571 link.
All Across Clues and Answers:
1-across – Location of US gold depository : FORTKNOX
5-across – Remove floating matter from surface : SKIM
9-across – Talkative : VOCAL
10-across – Intellectual : EGGHEAD
11-across – One perpetrating many murders at different times : SERIALKILLER
13-across – Bring down – hid : LAYLOW
14-across – Batter – refreshment counter : BUFFET
17-across – Medicine authorised by doctor : PRESCRIPTION
20-across – Postmortem : AUTOPSY
21-across – Rule of monarch : REIGN
22-across – Amphibian with warts : TOAD
23-across – Postscript to play, book etc : EPILOGUE
All Down Clues and Answers:
1-down – Number of towns Arnold Bennett’s Anna is associated with : FIVE
2-down – Shaky : RICKETY
3-down – Optical pattern-making toy : KALEIDOSCOPE
4-down – In full view : OPENLY
6-down – Go down on bended legs : KNEEL
7-down – Dare me to : MODERATE
8-down – Related to farming : AGRICULTURAL
12-down – Largest land mammal : ELEPHANT
15-down – Basis : FOOTING
16-down – Neaten : TIDYUP
18-down – Additional : EXTRA
19-down – Formerly : ONCE
This crossword has in total 24 where 12 are across and 12 are down.