Friend adjusted part of camera (6)
I believe the answer is:
finder
'part of camera' is the definition.
('finder' is part of 'camera')
'friend adjusted' is the wordplay.
'adjusted' indicates anagramming the letters.
'friend' anagrammed gives 'FINDER'.
(Other definitions for finder that I've seen before include "instrument used to locate a target" , "May one keep" , "One making discovery" , "Locator (of an object)" , "keeper, they say" .)