Crossword Genius

Look sullen (4)

Ross

I think it could be either:

lour

pout

'look sullen' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for pout that I've seen before include "Petulant expression" , "Push lips forward in sulky expression" , "Push out one's lips" , "Bib" , "Push lips out as sign of annoyance" .)

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