Boss of film company refusing one Oscar (4)
I believe the answer is:
stud
'boss' is the definition.
(both can mean a metal decoration)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for stud that I've seen before include "Projecting boss" , "Decoration" , "pin" , "Collar-fastener" , "associated with Press" .)