This crossword No. 911 clues and answers were published on Sun 10 Mar 2013 and the puzzle can be visited by following The Guardian Speedy Crossword No. 911 link.
All Across Clues and Answers:
1-across – Variety? : SPICEOFLIFE
9-across – Shrew, scold : TERMAGANT
10-across – Large vase : URN
11-across – Lowest point : NADIR
13-across – Parvenu : UPSTART
14-across – Rectangular : OBLONG
15-across – : SOVIET
18-across – Disc plaything : FRISBEE
20-across – Underground vault : CRYPT
21-across – Trespass : SIN
22-across – Appetiser, starter : ANTIPASTO
24-across – In the limelight : CENTRESTAGE
All Down Clues and Answers:
2-down – Standard : PAR
3-down – Mortification : CHAGRIN
4-down – Incomprehensible, impenetrable : OPAQUE
5-down – Aquatic plant : LOTUS
6-down – Thrift : FRUGALITY
7-down – Reserved, aloof : STANDOFFISH
8-down – Foundation : INSTITUTION
12-down – Dawdling : DALLIANCE
16-down – The back of the skull : OCCIPUT
17-down – Nerve, courage : METTLE
19-down – Brag : BOAST
23-down – Droop, flag : SAG
This crossword has in total 24 where 12 are across and 12 are down.