A fishy style? (6)

I believe the answer is:

mullet

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'style?' is the definition.
(hair style)

I can't explain the remainder of the clue.

(Other definitions for mullet that I've seen before include "Starfish" , "Fish - bad haircut" , "Barnet?" , "Fish's name for a hairstyle" , "Fish; man's hair style" .)

I've seen this clue in The Times.

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