Crossword Genius

Claim mastery, after working: that’s irregular (12)

Ross

I believe the answer is:

asymmetrical

'irregular' is the definition.
('asymmetrical' can be similar in meaning to 'irregular')

'claim mastery after working' is the wordplay.
'after working' indicates an anagram.
'claim'+'mastery'='claimmastery'
'claimmastery' is an anagram of 'ASYMMETRICAL'.

'that's' acts as a link.

(Other definitions for asymmetrical that I've seen before include "a gymnast would use such bars" , "Crooked" , "Not even" , "Irregular in outline" .)

I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.