Doctor's charge for cut feet? (3)
I believe the answer is:
fee
'doctor's charge' is the definition.
(I've seen this in another clue)
'cut feet?' is the wordplay.
'cut' means to remove the last letter.
'feet' with its last letter taken off is 'FEE'.
'for' acts as a link.
(Other definitions for fee that I've seen before include "Money paid for professional services" , "Sum payable to professional person for services" , "Payment to a professional for services" , "(Entry) charge" , "Amount paid for job" .)