This crossword No. 11273 clues and answers were published on Fri 23 Jun 2006 and the puzzle can be visited by following The Guardian Quick Crossword No. 11273 link.
All Across Clues and Answers:
1-across – Giant American tree : REDWOOD
8-across – Not professional : AMATEUR
9-across – Lake in Hungary : BALATON
10-across – Stimulate into creative activity : INSPIRE
11-across – String of twisted fibres : TWINE
13-across – Jingoistic : BELLICOSE
15-across – Where one was educated : OLDSCHOOL
18-across – Dark : DUSKY
21-across – Do physical exercises? : KEEPFIT
22-across – Test or study carefully : EXAMINE
23-across – Soon : ERELONG
24-across – Clumsy – problematic : AWKWARD
All Down Clues and Answers:
1-down – Automaton : ROBOT
2-down – Indian city : DELHI
3-down – At a disadvantage : ONTHEBACKFOOT
4-down – Sandinista leader : DANIEL
5-down – Novel by Jane Austen : MANSFIELDPARK
6-down – North American country : MEXICO
7-down – Solidify with cold : FREEZE
12-down – Where the Lord Chancellor sits : WOOL
14-down – See 12 : SACK
15-down – Islands north of Scotland : ORKNEY
16-down – Type of fuel : DIESEL
17-down – See 4 : ORTEGA
19-down – Destroyer goddess of Hinduism : SHIVA
20-down – Surrender : YIELD
This crossword has in total 26 where 12 are across and 14 are down.