— Boots; — hat (7)

I believe the answer is:

cossack

(Other definitions for cossack that I've seen before include "One of a people from SW Russia, Ukraine" , "Member of Russian, Ukrainian people" , "One of an elite cavalry corps in tzarist Russia" , "Belligerent Russian" , "Russian tribesman famed for horsemanship" .)

I've seen this clue in The Times.

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