Papacy (4,3)
I believe the answer is:
holy see
'papacy' is the definition.
(I have seen 'The papacy ' mean 'holy see' so perhaps 'papacy' could also mean 'holy see')
This is all the clue.
(Other definitions for holy see that I've seen before include "Church court" , "Papal office" , "Sovereign state within Rome" , "palace in Rome" , "Pope's position" .)