Crossword Genius

Hat not right for combined forces doing tour? (5)

Ross

I believe the answer is:

toque

'hat' is the definition.
(I know that toque is a type of hat)

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

(Other definitions for toque that I've seen before include "protection for the head" , "Woman's small hat" , "Woman's round, brimless hat" , "Sri Lankan monkey" , "Close-fitting hat" .)

I've seen this clue in The Times.
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