Renter's concern (5)
I believe the answer is:
lease
'renter's concern' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lease that I've seen before include "Ghost" , "Contract for, say, use of building" , "Hire out, rent" , "Term of a rental contract" , "Rent (a property)" .)