Cylindrical cake (5,4)
I believe the answer is:
swiss roll
'cylindrical cake' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for swiss roll that I've seen before include "Filled sponge cake" , "Cylindrical sponge cake with layers of jam" , "teatime treat?" , "Tumble down the ski slopes maybe" , "Type of sponge cake" .)