This crossword No. 12958 clues and answers were published on Mon 21 Nov 2011 and the puzzle can be visited by following The Guardian Quick Crossword No. 12958 link.
All Across Clues and Answers:
1-across – Brought to an end : CONCLUDED
8-across – Seraglio : HAREM
9-across – Navigational instrument : COMPASS
10-across – Based on sound reasoning : RATIONAL
11-across – Facial feature : CHIN
13-across – Stone figure by the pyramids at Giza : SPHINX
14-across – Dairy product : CHEESE
16-across – Gallery of a theatre : GODS
17-across – Overjoyed : JUBILANT
19-across – Bind by conditions — to widen : TIEDOWN
20-across – Part of the London borough of Ealing — British historian, d. 1902 : ACTON
21-across – Ignore : DISREGARD
All Down Clues and Answers:
1-down – Exacerbate — enclosure : COMPOUND
2-down – Drink of the Greek gods : NECTAR
3-down – Capital of Peru : LIMA
4-down – Capital punishment : DEATHPENALTY
5-down – Agent that destroys bacteria : DISINFECTANT
6-down – Myopic : SHORTSIGHTED
7-down – Despondency : WRETCHEDNESS
12-down – Southeast Asian country : THAILAND
15-down – Old British gold coin with a value of 21 shillings : GUINEA
18-down – Take part in an election : VOTE
This crossword has in total 22 where 12 are across and 10 are down.