Theatre god (6)
I believe the answer is:
apollo
I believe this is a double definition.
'theatre' is the first definition.
(theatre in London's West End)
'god' is the second definition.
(Apollo is an example)
(Other definitions for apollo that I've seen before include "US spacecraft" , "mission of high-flying Americans?" , "US space project, 1960-72" , "American space programme for landing men on moon" , "Greek god (twin brother of Artemis)" .)