Crossword Genius

Metrical measures - or not metrical measures (4)

Ross

I believe the answer is:

feet

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'measures' is the definition.
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(Other definitions for feet that I've seen before include "Old measures - that fill shoes" , "Lower extremities" , "Imperial units of length" , "Have both on the ground to be practical" , "Three of these in yard" .)

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