This crossword No. 13348 clues and answers were published on Tue 19 Feb 2013 and the puzzle can be visited by following The Guardian Quick Crossword No. 13348 link.
All Across Clues and Answers:
1-across – Light white Rhine wine : LIEBFRAUMILCH
8-across – Fork-tailed seabird : TERN
9-across – Pharmacist : DRUGGIST
10-across – Agatha Christie detective : MISSMARPLE
12-across – Pestilence : PLAGUE
14-across – Cut in two : BISECT
15-across – Largest part : LIONSSHARE
19-across – Barchester Towers author : TROLLOPE
20-across – Petty quarrel : TIFF
21-across – Socially unacceptable : BEYONDTHEPALE
All Down Clues and Answers:
2-down – Not fit to eat : INEDIBLE
3-down – Extra payment : BONUS
4-down – Bureaucratic procedures : REDTAPE
5-down – Take power unlawfully : USURP
6-down – Entrance : INGRESS
7-down – Bludgeon : COSH
11-down – Contemptuous : SCORNFUL
13-down – Italian astronomer and mathematician, d. 1642 : GALILEO
14-down – Entreat : BESEECH
16-down – Egg-shaped : OVOID
17-down – Angry — agitated : HETUP
18-down – Straight : TRUE
This crossword has in total 22 where 10 are across and 12 are down.