Priest is featured in Times championing exclusive group (7)
I believe the answer is:
elitist
'exclusive group' is the definition.
(I've seen this before)
'priest is featured in times' is the wordplay.
'priest' becomes 'eli' (biblical figure).
'featured in' is an insertion indicator.
'times' becomes 'tt' (an abbreviation for time written twice).
'is' placed into 'tt' is 'tist'.
'eli'+'tist'='ELITIST'
'championing' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for elitist that I've seen before include "Looking down on others" , "Favouring a select group" , "Believing in the right of an exclusive group to lead" , "Narrowly superior" , "for the cream" .)