Charge that makes you feel robbed of pounds (3)
I believe the answer is:
fee
'charge' is the definition.
(fee is a kind of charge)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for fee that I've seen before include "Money paid for professional services" , "Amount paid for job" , "Sum payable to professional person for services" , "price" , "Sum payable to, say, barrister" .)