Father nursing wife with fruit (6)

I believe the answer is:

pawpaw

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'fruit' is the definition.
(pawpaw is a kind of fruit)

'father nursing wife' is the wordplay.
'father' becomes 'papaw' (I can't explain this - if you can you should believe this answer much more).
'nursing' is an insertion indicator.
'wife' becomes 'w'.
'papaw' going around 'w' is 'PAWPAW'.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for pawpaw that I've seen before include "Papaya" , "foul once" , "Fruit" , "Custard apple tree" .)

I've seen this clue in The Independent.

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