Papa abandoning biased craftsman (7)
I believe the answer is:
artisan
'craftsman' is the definition.
('artisan' can be a synonym of 'craftsman')
'papa abandoning biased' is the wordplay.
'papa' becomes 'p' (phonetic alphabet: alpha, bravo, charlie etc.).
'abandoning' suggests deleting specific letters.
'biased' becomes 'partisan' ('partisan' can be similar in meaning to 'biased').
'partisan' with 'p' removed is 'ARTISAN'.
(Other definitions for artisan that I've seen before include "Train as (anag) - craftsman" , "Mechanic" , "Skilled worker or craftsman" , "Skilled tradesman" , "Journeyman" .)