Craftsman, in part, is anxious (7)
I believe the answer is:
artisan
'craftsman' is the definition.
('artisan' can be a synonym of 'craftsman')
'in part is anxious' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ARTISAN' is hidden within 'part is anxious'.
(Other definitions for artisan that I've seen before include "Smith" , "craftsman of his trade" , "man with skill" , "crafty person?" , "Technician" .)