Domed dessert (5)
I believe the answer is:
bombe
'domed dessert' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bombe that I've seen before include "Ice cream frozen in a round mould" , "Dome-shaped dessert, often frozen" , "Sweet" , "Ice-cream dessert" , "like some rounded furniture" .)