This crossword No. 12015 clues and answers were published on Mon 10 Nov 2008 and the puzzle can be visited by following The Guardian Quick Crossword No. 12015 link.
All Across Clues and Answers:
1-across – Japanese heavyweight sport : SUMOWRESTLING
8-across – Volcanic flowing substance : LAVA
9-across – Card game : GINRUMMY
10-across – Tent for the Ark of the Covenant : TABERNACLE
12-across – Church tower space : BELFRY
14-across – Tradition : CUSTOM
15-across – : SLATTERNLY
19-across – Over lengthy and technical speech : VERBIAGE
20-across – Male bird : COCK
21-across – English poet, 1688-1744 : ALEXANDERPOPE
All Down Clues and Answers:
2-down – Without knowledge of the situation : UNAWARES
3-down – Speak pompously and at length : ORATE
4-down – Of a period of government, such as in Britain 1811-1820 : REGENCY
5-down – Of sound : SONIC
6-down – Woven foliage of the bay tree : LAURELS
7-down – Verne’s submarine captain : NEMO
11-down – About 330 x 200 : FOOLSCAP
13-down – Container for electrical safety devices : FUSEBOX
14-down – Middle-of-the-road reflector : CATSEYE
16-down – Another time : AGAIN
17-down – Summarise : RECAP
18-down – Nether world : HELL
This crossword has in total 22 where 10 are across and 12 are down.