Whipped us some dessert (6)
I believe the answer is:
mousse
'dessert' is the definition.
(mousse is a kind of dessert)
'whipped us some' is the wordplay.
'whipped' is an anagram indicator.
'us'+'some'='ussome'
'ussome' anagrammed gives 'MOUSSE'.
(Other definitions for mousse that I've seen before include "A dessert, or creamy substance used to style hair" , "hair product" , "Light savoury dish" , "Something for the hair" , "Pope's representative" .)