This crossword No. 9135 clues and answers were published on Thu 12 Aug 1999 and the puzzle can be visited by following The Guardian Quick Crossword No. 9135 link.
All Across Clues and Answers:
1-across – Result of infection in respiratory tract : BRONCHITIS
7-across – Shame : DISGRACE
8-across – Nightclub area in London : SOHO
9-across – Sand hill : DUNE
10-across – Make patterns using thin perforated sheets : STENCIL
12-across – Heat at track : HEARTATTACK
14-across – Eight-sided figure : OCTAGON
16-across – Appliance producing light : LAMP
19-across – Nothing : ZERO
20-across – Aped : IMITATED
21-across – Inflammation of part of throat : LARYNGITIS
All Down Clues and Answers:
1-down – Unable to see – screen : BLIND
2-down – Thin, stiff fabric : ORGANZA
3-down – Talon : CLAW
4-down – Individuality providing recognition : IDENTITY
5-down – Norwegian dramatist : IBSEN
6-down – Get smaller – psychiatrist : SHRINK
11-down – Wickedness : ATROCITY
12-down – Game started by a bully! : HOCKEY
13-down – Unyielding : ADAMANT
15-down – Fragrance : AROMA
17-down – Put creases in : PRESS
18-down – Feathered limb used in flying : WING
This crossword has in total 23 where 11 are across and 12 are down.