Ring-shaped bread roll (5)
I believe the answer is:
bagel
'ring-shaped bread roll' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for bagel that I've seen before include "Doughnut-shaped bread roll" , "round fare" , "Ring-shaped bread product" , "Ring-shaped bread roll" , "Hard doughnut-shaped roll" .)