Land hot Irish priest, one on Donegal island? (9)
I believe the answer is:
territory
'land' is the definition.
(I've seen this before)
'hot irish priest one on donegal island?' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
'on' could be 'to' and 'to' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for territory that I've seen before include "All the land belonging to a state" , "Try rioter (anag.)" , "One's own area, land" , "Tract of land" , "Area under the jurisdiction of a sovereign state" .)