This crossword No. 10591 clues and answers were published on Fri 16 Apr 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10591 link.
All Across Clues and Answers:
1-across – Mouldable : PLASTIC
8-across – The Merchant of Venice : ANTONIO
9-across – Egyptian building : PYRAMID
10-across – Fail to pay : DEFAULT
11-across – Tree – aircraft : PLANE
13-across – Change of government jobs : RESHUFFLE
15-across – I pass them : STEAMSHIP
18-across – Be : EXIST
21-across – East Asian country : VIETNAM
22-across – Menacing – dejected : BALEFUL
23-across – Drop : LETFALL
24-across – Supreme ruler : EMPEROR
All Down Clues and Answers:
1-down – Appear : POPUP
2-down – Main artery : AORTA
3-down – Given to mood changes : TEMPERAMENTAL
4-down – Larva of an aquatic fly : CADDIS
5-down – Symbol of resolution in bad times : STIFFUPPERLIP
6-down – Overwhelm : ENGULF
7-down – Container for liquid – courage : BOTTLE
12-down – Devoid of spirit or energy : LIST
14-down – See 12 : LESS
15-down – Row : SAVILE
16-down – Happenings : EVENTS
17-down – Lowly : HUMBLE
19-down – Conclude : INFER
20-down – Wat, leader of the Peasants’ Revolt : TYLER
This crossword has in total 26 where 12 are across and 14 are down.