Some television or theatre direction (5)
I believe the answer is:
north
'direction' is the definition.
(compass direction)
'some television or theatre' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'NORTH' can be found hidden inside 'television or theatre'.
(Other definitions for north that I've seen before include "A 24 [STAR]" , "Cardinal compass point" , "Former statesman" , "Direction that's usually "up" on a map" , "bridge player" .)