Having tenants phone back (3)
I believe the answer is:
let
'having tenants' is the definition.
I can't judge whether this defines the answer.
'phone back' is the wordplay.
'phone' becomes 'tel'.
'back' shows that the letters should be reversed in order.
'tel' backwards is 'LET'.
Can you help me to learn more?
(Other definitions for let that I've seen before include "Allow; rental period" , "Reason for scrubbing service" , "Award (a contract)" , "hired" , "Won't stop you" .)