Crossword Genius

Utter a profanity (5)

Ross

I believe the answer is:

swear

(Other definitions for swear that I've seen before include "not to mince one's words" , "Vow, attest" , "Express annoyance" , "Avow" , "Use indecent or blasphemous language" .)

I've seen this clue in the Sydney Morning Herald.
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