Increasingly annoyed about earring (7)

I believe the answer is:

angrier

'increasingly annoyed' is the definition.
(more angry or annoyed)

'about earring' is the wordplay.
'about' indicates anagramming the letters.
'earring' is an anagram of 'ANGRIER'.

(Other definitions for angrier that I've seen before include "More furious" , "Not so calm" , "More worked up" , "More irate" , "More annoyed" .)

I've seen this clue in The Guardian.

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