Playhouse (7)
I believe the answer is:
theatre
'playhouse' is the definition.
(I know that playhouse can be written as theatre)
This is the entire clue.
(Other definitions for theatre that I've seen before include "eg The Globe" , "Place where plays are produced" , "Major area of military activity" , "Venue for plays, films and surgery" , "where you may get knifed" .)