Some chocolate ripple? Not now! (5)
I believe the answer is:
later
'not now' is the definition.
(I've seen this before)
'some chocolate ripple?' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'LATER' is hidden within 'chocolate ripple'.
(Other definitions for later that I've seen before include "Alter (anag.)" , "behind schedule" , "goodbye" , "more modern" , "Alert (anag.)" .)