Cold fruit flake (4)
I believe the answer is:
chip
'flake' is the definition.
('chip' can be a synonym of 'flake')
'cold fruit' is the wordplay.
'cold' becomes 'c' (eg on taps).
'fruit' becomes 'hip' (I've seen this in other clues**).
'c'+'hip'='CHIP'
(Other definitions for chip that I've seen before include "Small piece of stone or silicon" , "Piece off block (or on shoulder?)" , "Such as copper" , "Approach shot at 1 across" , "Pare" .)