Mist coming in off the sea (4)

I believe the answer is:

fret

(Other definitions for fret that I've seen before include "Worry - ridge on guitar's fingerboard" , "Part of a Gibson, say" , "Worry - decoration - part of guitar" , "Sort of saw work" , "Worry; or the marking on a guitar" .)

I've seen this clue in The Guardian.

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