Charge note to provide meal (4)
I believe the answer is:
feed
'meal' is the definition.
(feed can mean food)
'charge note' is the wordplay.
'charge' becomes 'fee' (fee is a kind of charge).
'note' becomes 'D' (musical note).
'fee'+'d'='FEED'
'to provide' is the link.
(Other definitions for feed that I've seen before include "Take food" , "Paid" , "Give (or take) nourishment" , "Fodder" , "Provide food" .)