This crossword No. 11056 clues and answers were published on Wed 12 Oct 2005 and the puzzle can be visited by following The Guardian Quick Crossword No. 11056 link.
All Across Clues and Answers:
1-across – It has dialogue as well as singing : COMICOPERA
7-across – Battle – be incompatible : CONFLICT
8-across – Colour : BLUE
9-across – Uninteresting : DULL
10-across – Learner : STUDENT
12-across – Pupil at Hogwarts : HARRYPOTTER
14-across – Gift – here : PRESENT
16-across – Cosy : SNUG
19-across – Talon : CLAW
20-across – : SURGICAL
21-across – Top position : PRESIDENCY
All Down Clues and Answers:
1-down – Large number of people : CROWD
2-down – Scarf : MUFFLER
3-down – Maybe silicon or potato : CHIP
4-down – Request : PETITION
5-down – Infected with hydrophobia : RABID
6-down – Artilleryman : GUNNER
11-down – Inducing of trance-like state : HYPNOSIS
12-down – Obstacle to jump : HURDLE
13-down – Strain : TENSION
15-down – Drain : SEWER
17-down – Sauce from meat juice : GRAVY
18-down – Network : GRID
This crossword has in total 23 where 11 are across and 12 are down.