Radio for example one buys from thief (8)
I believe the answer is:
receiver
This clue is a double definition.
'radio for example' is the first definition.
(radio is a kind of receiver)
'one buys from thief' is the second definition.
(receiver of stolen goods)
(Other definitions for receiver that I've seen before include "One getting" , "Legally-appointed person to liquidate or preserve assets" , "Court-appointed manager; part of telephone" , "Beneficiary; fence" , "One talked into" .)