Cloud's locale (3)
I believe the answer is:
sky
'cloud's locale' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for sky that I've seen before include "Hit (a ball) very high" , "Hit high into the air" , "Outer space viewed from earth" , "Heavens above!" , "Upper region, empyrean" .)