Skill in boatbuilding? (5)

I believe the answer is:

craft

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'skill' is the definition.
(craft is a kind of skill)

I don't understand how the rest of the clue works.

(Other definitions for craft that I've seen before include "Trickery" , "Cunning - trade" , "Skilled workers" , "Create" , "Vessel; skill" .)

I've seen this clue in the Evening Standard.

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