A rector overseeing organ recital, originally raised church's sense of superiority (9)
I believe the answer is:
arrogance
'sense of superiority' is the definition.
(I've seen this before)
'a rector overseeing organ recital originally raised church's' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is present in the answer.
'rector' could be 'r' and 'r' is found within the answer.
'church' could be 'ce' (abbreviation for Church of England) and 'ce' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for arrogance that I've seen before include "Overweening self-importance" , "Aggressive assertiveness" , "Wild self-importance" , "Overbearing haughtiness" , "disdain" .)