Tenanted as permitted (3)
I believe the answer is:
let
I believe this clue is a double definition.
'tenanted' is the first definition.
(I've seen this in another clue)
'permitted' is the second definition.
(to let something happen is to permit it)
'as' is the link.
(Other definitions for let that I've seen before include "Allow or rent" , "Allow; rental period" , "Allow; permit" , "Reason for scrubbing service" , "Was inclined to ignore" .)