Eastern gale battered bird (5)
I believe the answer is:
eagle
'bird' is the definition.
(eagle is a type of bird)
'eastern gale battered' is the wordplay.
'eastern' becomes 'e'.
'battered' indicates anagramming the letters.
'gale' is an anagram of 'agle'.
'e'+'agle'='EAGLE'
(Other definitions for eagle that I've seen before include "Erne, perhaps" , "Bird of prey, may be golden" , "high-flier" , "five buck bit, or more" , "Large birds of prey." .)