Summer treats (4)
I believe the answer is:
ices
'summer treats' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ices that I've seen before include "they may be held in the summer" , "Kills (slang) - sweets" , "Decorates cake with sugar topping" , "Cones etc" , "summer refreshment" .)