This crossword No. 9148 clues and answers were published on Fri 27 Aug 1999 and the puzzle can be visited by following The Guardian Quick Crossword No. 9148 link.
All Across Clues and Answers:
1-across – Front line in teaching : CHALKFACE
8-across – Upland area – tie up : MOOR
9-across – Off the side of the ship : OVERBOARD
10-across – In addition : PLUS
13-across – Mackerel bait? : SPRAT
15-across – Inconsistent : PATCHY
16-across – Slat in door – art gallery : LOUVRE
17-across – Irreverent : RIBALD
19-across – Frightened : SCARED
20-across – Fluid containing antibodies : LYMPH
21-across – Stop : HALT
24-across – Gabby : TALKATIVE
25-across – Crazy : NUTS
26-across – It ends 2, 1, zero : COUNTDOWN
All Down Clues and Answers:
2-down – Bees’ home : HIVE
3-down – Songbird : LARK
4-down – Type of disk : FLOPPY
5-down – Pen for cattle – ring of waggons : CORRAL
6-down – Broad tree-lined street : BOULEVARD
7-down – Increase of volume : CRESCENDO
11-down – Arrest – grasp : APPREHEND
12-down – Balanced, settled state : STABILITY
13-down – Outer case : SHELL
14-down – Make contact with : TOUCH
18-down – Power source : DYNAMO
19-down – Oral : SPOKEN
22-down – Fastening for collar : STUD
23-down – Declare – admit : AVOW
This crossword has in total 28 where 14 are across and 14 are down.