Feel that pounds should be taken off, as a charge (3)
I believe the answer is:
fee
'a charge' is the definition.
(fee is a kind of charge)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for fee that I've seen before include "Amount paid for job" , "Cost" , "price" , "(Entry) charge" , "Payment to a professional for services" .)