Whipped dessert (6)
I believe the answer is:
mousse
'whipped dessert' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mousse that I've seen before include "A hair dressing; a creamy sweet" , "Whipped sweet" , "Whipped savoury dish" , "Capital preparation" , "Creamy substance used for styling hair" .)