Places for props (4)
I believe the answer is:
sets
'places for props' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sets that I've seen before include "Groups of things of the same kind" , "Units of play in tennis" , "Major divisions of tennis match" , "Scenery etc. of dramatic productions" , "Hardens" .)