More suited to being a mechanic (6)
I believe the answer is:
fitter
This clue is a double definition.
'more suited' is the first definition.
('fit' can be similar in meaning to 'suited')
'a mechanic' is the second definition.
(I've seen this before)
'to being' acts as a link.
(Other definitions for fitter that I've seen before include "better equipped" , "to get in better shape" , "less likely to feel fatigue" , "Assembler; more suitable" , "A skilled technician" .)