Bread rising at end (5)
I believe the answer is:
pitta
'bread' is the definition.
(I've seen this before)
'rising at end' is the wordplay.
'rising' says the letters should be written backwards (going up in a down clue).
'end' becomes 'tip' (tip is a kind of end).
'at'+'tip'='attip'
'attip' reversed gives 'PITTA'.
(Other definitions for pitta that I've seen before include "Flat hollow unleavened bread" , "Slightly leavened bread" , "Greek unleavened bread" , "Middle Eastern bread" , "Flat sort of bread" .)