Crossword Genius

Refine, as a skill

Ross

I believe the answer is:

hone

'refine as a skill' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for hone that I've seen before include "Polish" , "Sharpen (a blade)" , "Smooth stone" , "Strop" , "Sharpen tool on stone" .)

I've seen this clue in The New York Times.
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