Component of part is annealed for mechanic (7)
I believe the answer is:
artisan
'mechanic' is the definition.
(thesaurus)
'component of part is annealed' is the wordplay.
'component of' indicates the answer is hidden within the clue (I've seen this in other clues).
'ARTISAN' can be found hidden inside 'part is annealed'.
'for' is the link.
(Other definitions for artisan that I've seen before include "Handy worker" , "Skilled manual 17" , "man with skill" , "Skilled craftsperson" , "Skilled worker or craftsman" .)