Cows' young leg-parts (6)

I believe the answer is:

calves

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'cows'' is the definition.
(I have seen 'Young cows ' mean 'calves' so perhaps 'cows' could also mean 'calves')

I don't understand the rest of the clue.

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(Other definitions for calves that I've seen before include "Small and neat" , "Backs of legs" , "Young domestic cattle" , "Young farm animals" , "Young cows" .)

I've seen this clue in the Sydney Morning Herald.

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