Generously dispensing with payment (6)
I believe the answer is:
freely
'generously' is the definition.
(thesaurus)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for freely that I've seen before include "Liberally; willingly" , "Without let or hindrance" , "Without compulsion" , "easily" , "boldly" .)