Price I'm prepared to give a quack doctor (7)
I believe the answer is:
empiric
'a quack doctor' is the definition.
(I've seen this before)
'price i'm prepared' is the wordplay.
'prepared' is an anagram indicator.
'price'+'im'='priceim'
'priceim' with letters rearranged gives 'EMPIRIC'.
'to give' acts as a link.
(Other definitions for empiric that I've seen before include "Derived from experiment and observation rather than theory" , "medical quack" , "working by trial and error" , "Based on experience" , "Old quack doctor" .)