Stuff concerning payment given to duke (8)

I believe the answer is:

overfeed

'stuff' is the definition.
(thesaurus)

'concerning payment given to duke' is the wordplay.
'concerning' becomes 'over' (both can mean relating to).
'payment given' becomes 'fee' (I can't explain this - if you can you should believe this answer much more).
'to duke' becomes 'd' (abbreviation).
'over'+'fee'+'d'='OVERFEED'

I've seen this clue in The Times.

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