This crossword No. 13028 clues and answers were published on Fri 10 Feb 2012 and the puzzle can be visited by following The Guardian Quick Crossword No. 13028 link.
All Across Clues and Answers:
1-across – Horrified : APPALLED
5-across – Very long time : AGES
9-across – Specks of soot — South African statesman, d. 1950 : SMUTS
10-across – Barbary pirate — pirate ship : CORSAIR
11-across – One expected to succeed : HEIRAPPARENT
13-across – Two-way ticket : RETURN
14-across – Steady : STABLE
17-across – Royal Opera House location : COVENTGARDEN
20-across – Very busy : ONTHEGO
21-across – Below : UNDER
22-across – Material deposited by a river : SILT
23-across – Yorkshire racecourse : WETHERBY
All Down Clues and Answers:
1-down – To boot : ALSO
2-down – Careful and sensible : PRUDENT
3-down – Computer peripheral : LASERPRINTER
4-down – Other than : EXCEPT
6-down – Open space in a wood : GLADE
7-down – Assets that a creditor can claim from a defaulter : SURETIES
8-down – Important discovery : BREAKTHROUGH
12-down – Cherished : PRECIOUS
15-down – Kitchen appliance : BLENDER
16-down – Region : IGNORE
18-down – Essential : VITAL
19-down – Brewer’s cart : DRAY
This crossword has in total 24 where 12 are across and 12 are down.