This crossword No. 1263 clues and answers were published on Sun 15 Dec 2019 and the puzzle can be visited by following The Guardian Speedy Crossword No. 1263 link.
All Across Clues and Answers:
1-across – Black, hornless breed of cattle : ABERDEENANGUS
8-across – Mass of metal, particularly iron, simply cast : PIG
9-across – Being; survival : EXISTENCE
10-across – Discord: war : CONFLICT
11-across – Bejewel: fastener : STUD
13-across – Jog one’s memory : REMIND
14-across – Sieve; percolate : FILTER
16-across – Leaves of a South American shrub, a chewed stimulant : COCA
17-across – Asian disease due to vitamin B1 deficiency : BERIBERI
20-across – Camera’s magnifying lens : TELEPHOTO
21-across – Afflict; trouble : AIL
22-across – Read the Riot Act : LAYDOWNTHELAW
All Down Clues and Answers:
1-down – Savoury meat or fish jelly : ASPIC
2-down – Nicely lag room : ERGONOMICALLY
3-down – Abode; inhabiting : DWELLING
4-down – Show clearly; reveal the presence of : EVINCE
5-down – Highest adult male voice : ALTO
6-down – Collapsed commercially : GONETOTHEWALL
7-down – Narrow: willowy : SLENDER
12-down – Germanic settler in 5th century Spain : VISIGOTH
13-down – Performance; concert : RECITAL
15-down – Narcotic powder derived from morphine : HEROIN
18-down – Relative by marriage : INLAW
19-down – As far as: busy or occupied with : UPTO
This crossword has in total 24 where 12 are across and 12 are down.