Cylinder jammed? (5,4)
I believe the answer is:
swiss roll
This clue might be a double definition.
'cylinder' is the first definition.
'jammed?' is the second definition.
The definition and answer are not the same part of speech. However, I know that 'jammed' relates to this answer.
(Other definitions for swiss roll that I've seen before include "Filled sponge cake" , "piece of cake?" , "teatime treat?" , "Cylindrical sponge cake with layers of jam" , "Type of sponge cake" .)