Crossword Genius

Check one with Queen getting more irritable (7)

Ross

I believe the answer is:

testier

'more irritable' is the definition.
('testy' can be a synonym of 'irritable')

'check one with queen' is the wordplay.
'check' becomes 'test' ('test' can be a synonym of 'check'**).
'one' becomes 'i' (Roman numeral).
'with' says to put letters next to each other.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'test'+'i'+'er'='TESTIER'

'getting' acts as a link.

(Other definitions for testier that I've seen before include "more crusty" , "More likely to become annoyed" , "more irritable" .)

I've seen this clue in The Telegraph.
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