Not hot, perhaps (6)
I believe the answer is:
shaded
'not hot perhaps' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for shaded that I've seen before include "Sheltered" , "In comparative darkness" , "Coloured in; screened from direct light" , "Out of direct sunlight" , "Crayoned in" .)