Incitement without professional calling (8)
I believe the answer is:
vocation
'calling' is the definition.
('vocation' can be a synonym of 'calling')
'incitement without professional' is the wordplay.
'incitement' becomes 'provocation' ('provocation' can be a synonym of 'incitement').
'without' is a deletion indicator.
'professional' becomes 'pro' ('pro' can be a synonym of 'professional').
'provocation' with 'pro' taken out is 'VOCATION'.
(Other definitions for vocation that I've seen before include "Calling in life" , "Religious calling" , "Trade, profession" , "Occupation, profession" , "A calling as to priesthood (8)" .)