This crossword No. 11282 clues and answers were published on Tue 04 Jul 2006 and the puzzle can be visited by following The Guardian Quick Crossword No. 11282 link.
All Across Clues and Answers:
1-across – Tree, maybe from Lombardy : POPLAR
4-across – The friendly trade union? : AMICUS
8-across – Speak – out-and-out : UTTER
9-across – One desiring to resemble someone else : WANNABE
10-across – Tolkien’s wizard : GANDALF
11-across – Swift : RAPID
12-across – Place for cultivation of trees : ARBORETUM
17-across – Highland dance – spell of way-out behaviour : FLING
19-across – One who is past it : HASBEEN
21-across – Jacob, sculptor : EPSTEIN
22-across – Saint giving name to dance : VITUS
23-across – Hang provocatively : DANGLE
24-across – Existing from birth : INBORN
All Down Clues and Answers:
1-down – Dive : PLUNGE
2-down – Flower much used in hanging baskets : PETUNIA
3-down – Main artery : AORTA
5-down – Tower on mosque : MINARET
6-down – Painful muscular contraction : CRAMP
7-down – Reliable – not shifting : STEADY
9-down – Having very little width or substance : WAFERTHIN
13-down – Successful piece of business : BIGDEAL
14-down – Expert in music etc : MAESTRO
15-down – Upset – break the law : OFFEND
16-down – The concordant trade union? : UNISON
18-down – Norwegian dramatist : IBSEN
20-down – Number : SEVEN
This crossword has in total 26 where 13 are across and 13 are down.