This crossword No. 10992 clues and answers were published on Fri 29 Jul 2005 and the puzzle can be visited by following The Guardian Quick Crossword No. 10992 link.
All Across Clues and Answers:
1-across – Diamond shape : RHOMBUS
8-across – Take the gloss off : TARNISH
9-across – City on the river Dee : CHESTER
10-across – Exempted from task : EXCUSED
11-across – Fold formed in fabric : PLEAT
13-across – Hesitate in decision making : HUMANDHAW
15-across – Manually operated device to hold vehicle : HANDBRAKE
18-across – Distinct period in development : PHASE
21-across – South Wales resort – talks indistinctly : MUMBLES
22-across – Slight crease in surface : WRINKLE
23-across – Swiss cheese : GRUYERE
24-across – Absconder : RUNAWAY
All Down Clues and Answers:
1-down – Repeat of main points : RECAP
2-down – Grossly fat : OBESE
3-down – Face up to trouble stoically : BITETHEBULLET
4-down – Steady flow : STREAM
5-down – Opinion formed beforehand : PRECONCEPTION
6-down – Item of pretentious bad taste : KITSCH
7-down – Image caused by obscuring of light : SHADOW
12-down – Volcanic emanation : LAVA
14-down – Line of symmetry : AXIS
15-down – Public show of respect : HOMAGE
16-down – Type of rain cloud : NIMBUS
17-down – Response : ANSWER
19-down – Wonky : ASKEW
20-down – Hostile opponent : ENEMY
This crossword has in total 26 where 12 are across and 14 are down.