Part of cow I fed partner (4)

I believe the answer is:

wife

'partner' is the definition.
(wife is a kind of partner)

'part of cow i fed' is the wordplay.
'part of' indicates a hidden word.
'WIFE' is hidden in the letters of 'cow i fed'.

(Other definitions for wife that I've seen before include "Married woman" , "Better half" , "Dutch (slang)" , "Husband's partner" , "Partner in marriage" .)

I've seen this clue in The Guardian.

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