This crossword No. 9149 clues and answers were published on Sat 28 Aug 1999 and the puzzle can be visited by following The Guardian Quick Crossword No. 9149 link.
All Across Clues and Answers:
1-across – South West Africa : NAMIBIA
8-across – Type of soft roll : BRIOCHE
9-across – Destroyers of the Roman Empire : VANDALS
10-across – Keep out : EXCLUDE
11-across – Smooth and glossy : SLEEK
13-across – Lepidopterous insect : BUTTERFLY
15-across – Yellow iris : WATERFLAG
18-across – Assign : ALLOT
21-across – Student of psyche or systems : ANALYST
22-across – Belonging to a particular area : ENDEMIC
23-across – Deceived – given hospitality : TAKENIN
24-across – Lease : TENANCY
All Down Clues and Answers:
1-down – The Biggest Ben? : NEVIS
2-down – Shredded meat : MINCE
3-down – Seeking fruit in September : BLACKBERRYING
4-down – Away : ABSENT
5-down – Where vegetables are grown : KITCHENGARDEN
6-down – Dirty, ill-dressed person : SCRUFF
7-down – Cure : REMEDY
12-down – Outflow from volcano : LAVA
14-down – Swimming pool : LIDO
15-down – Ghost : WRAITH
16-down – Polite acknowledgment : THANKS
17-down – Concealed : LATENT
19-down – Fruit : LEMON
20-down – Vulgar – viscous : TACKY
This crossword has in total 26 where 12 are across and 14 are down.