Cordon broken by a winger (6)
I believe the answer is:
condor
'a winger' is the definition.
(condor is a kind of bird)
'cordon broken' is the wordplay.
'broken' indicates anagramming the letters.
'cordon' is an anagram of 'CONDOR'.
'by' acts as a link.
(Other definitions for condor that I've seen before include "Andean vulture" , "Large bird of the Andes (national symbol of Peru)" , "South American vulture" , "Great bird of the Andes" , "Largest New World vulture" .)