This crossword No. 11479 clues and answers were published on Wed 21 Feb 2007 and the puzzle can be visited by following The Guardian Quick Crossword No. 11479 link.
All Across Clues and Answers:
1-across – Further tremor : AFTERSHOCK
7-across – Covered walk around a quadrangle : CLOISTER
8-across – Consider : DEEM
9-across – SI unit of power : WATT
10-across – Two violins, viola and a cello string group : QUARTET
12-across – Transmission of information down thin glass strands : FIBREOPTICS
14-across – Surgical pincers : FORCEPS
16-across – A long way away : AFAR
19-across – Collection of Old Norse poetry : EDDA
20-across – Practise : REHEARSE
21-across – Disc to be shot : CLAYPIGEON
All Down Clues and Answers:
1-down – Permit : ALLOW
2-down – Washing machine with two revolving drums : TWINTUB
3-down – Custom : RITE
4-down – Sound of someone clearing throat : HARRUMPH
5-down – Scrumpy : CIDER
6-down – Alcove : RECESS
11-down – Risk : JEOPARDY
12-down – Norwegian inlets : FJORDS
13-down – Enlarge : INFLATE
15-down – Swimming stroke : CRAWL
17-down – Gone up : RISEN
18-down – Native of Southeast Asia : THAI
This crossword has in total 23 where 11 are across and 12 are down.