This crossword No. 537 clues and answers were published on Sun 01 Jan 2006 and the puzzle can be visited by following The Guardian Speedy Crossword No. 537 link.
All Across Clues and Answers:
1-across – Point beyond which survival cannot continue : ENDOFTHEROAD
9-across – Dismantle : UNRIG
10-across – Interactive radio or TV feature : PHONEIN
11-across – See 15 : KHAN
12-across – Pass through : PERMEATE
14-across – Permanently frozen mass : ICECAP
15-across – Mongol emperor : KUBLAI
18-across – Appreciative : GRATEFUL
20-across – Deep cut : GASH
22-across – Coincide partly : OVERLAP
23-across – Final stage of insect development : IMAGO
24-across – Space-saving furniture : NESTOFTABLES
All Down Clues and Answers:
2-down – Recount : NARRATE
3-down – Binge : ORGY
4-down – Crowned : TIPPED
5-down – Gargantuan : ENORMOUS
6-down – Music drama or comedy : OPERA
7-down – Gambol : DANCEWITHJOY
8-down – Applying : BUCKLINGDOWN
13-down – Definitive battle of the Napoleonic Wars : WATERLOO
16-down – Discharge : LEAKAGE
17-down – Productivity : OUTPUT
19-down – States positively : AVERS
21-down – Bough : LIMB
This crossword has in total 24 where 12 are across and 12 are down.