Smart return of theatre home (6)
I believe the answer is:
dapper
'smart' is the definition.
(I've seen this in another clue)
'return of theatre home' is the wordplay.
'return of' shows that the letters should be reversed in order.
'theatre' becomes 'rep' (repertory theatre).
'home' becomes 'pad' (pad can mean a person's home).
'rep'+'pad'='reppad'
'reppad' backwards is 'DAPPER'.
(Other definitions for dapper that I've seen before include "(Of a man) neat and trim" , "Neat and precise" , "Smart - well presented" , "Neat and smart in appearance" , "bouncer" .)