This crossword No. 13439 clues and answers were published on Wed 05 Jun 2013 and the puzzle can be visited by following The Guardian Quick Crossword No. 13439 link.
All Across Clues and Answers:
1-across – Listen : HARK
3-across – South African city : PRETORIA
8-across – Mixer : SODA
9-across – Be conspicuous : STANDOUT
11-across – Superiority : EXCELLENCE
14-across – Tell : RELATE
15-across – Trade : BARTER
17-across – Philosophy of the fine arts : AESTHETICS
20-across – Cosmetic : EYELINER
21-across – Metal — wire : LEAD
22-across – Scatter in all directions : DISPERSE
23-across – Heavenly body : STAR
All Down Clues and Answers:
1-down – Tavern : HOSTELRY
2-down – Deride : RIDICULE
4-down – Cad : ROTTER
5-down – Mixer : TONICWATER
6-down – Part of a plant : ROOT
7-down – Keen on paintings etc : ARTY
10-down – Constantly : ALLTHETIME
12-down – Clamorous : STRIDENT
13-down – Advocate for a cause — rude scar : CRUSADER
16-down – Hasten : ATHENS
18-down – Pushing up the daisies : DEAD
19-down – Part of the eye : LENS
This crossword has in total 24 where 12 are across and 12 are down.