This crossword No. 12667 clues and answers were published on Wed 15 Dec 2010 and the puzzle can be visited by following The Guardian Quick Crossword No. 12667 link.
All Across Clues and Answers:
1-across – Self-admirer : NARCISSIST
7-across – Inflatable aid for those learning to swim : ARMBAND
8-across – Drink deeply : QUAFF
10-across – Conclusive end of a boxing match : KAYO
11-across – : BOGEYMAN
13-across – : NUTRIA
15-across – : SCURVY
17-across – Area for journalists at a sporting venue : PRESSBOX
18-across – Russian ruler : TSAR
21-across – Animal track : SPOOR
22-across – Odd : CURIOUS
23-across – Stiff — obstinate : INFLEXIBLE
All Down Clues and Answers:
1-down – Somewhere else and I might not object! : NIMBY
2-down – True : REAL
3-down – Within a building : INDOOR
4-down – Arrangement in a certain order : SEQUENCE
5-down – Person sending unsolicited emails : SPAMMER
6-down – Conceited, impertinent person : JACKANAPES
9-down – Masquerade costume? : FANCYDRESS
12-down – Wandering musician of old : MINSTREL
14-down – Restrict : TIEDOWN
16-down – Bone at the bottom of the spine : COCCYX
19-down – Blasphemed : SWORE
20-down – Catch hold : GRAB
This crossword has in total 24 where 12 are across and 12 are down.