Pair of names applied to one tavern (3)
I believe the answer is:
inn
'tavern' is the definition.
(I've seen this in another clue)
'pair of names applied to one' is the wordplay.
I cannot really see how this works, but
'names' could be 'nn' (an abbreviation for name twice) and 'nn' is present in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for inn that I've seen before include "Hostel" , "It provides rest for the traveller" , "watering-hole" , "pubs?" , "watering hole" .)