Crossword Genius

Irritable match ending in acrimony (5)

Ross

I believe the answer is:

testy

'irritable' is the definition.
(testy can mean irritable or annoyed)

'match ending in acrimony' is the wordplay.
'match' becomes 'test' (test match is a kind of match).
'ending in' indicates one should take the final letters.
The last letter of 'acrimony' is 'y'.
'test'+'y'='TESTY'

(Other definitions for testy that I've seen before include "Grumpy" , "Bad-tempered" , "Showing irritation" , "bad temper" , "Cross" .)

I've seen this clue in The Times.
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