No handy measure (4)

I believe the answer is:

foot

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'measure' is the definition.
(I know that foot is a type of measure)

I don't understand the remainder of the clue.

(Other definitions for foot that I've seen before include "Measure - part of body" , "Imperial distance" , "support" , "See 24" , "Twelve inches" .)

I've seen this clue in The Globe and Mail.

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