Renegade given a job at end of debate (8)
I believe the answer is:
apostate
'renegade' is the definition.
('apostate' can be a synonym of 'renegade')
'a job at end of debate' is the wordplay.
'job' becomes 'post' (post is a kind of job).
'end of' indicates one should take the final letters.
The last letter of 'debate' is 'e'.
'a'+'post'+'at'+'e'='APOSTATE'
'given' is the link.
(Other definitions for apostate that I've seen before include "Person who deserts their religion" , "Person abandoning their religion" , "Dissenter" , "Person who has renounced former belief" , "Religious rebel" .)