Bird damaged rear fencing pole (9,6)
I believe the answer is:
peregrine falcon
'bird' is the definition.
(I know that Peregrine Falcon is a bird)
'damaged rear fencing pole' is the wordplay.
'damaged' is an anagram indicator.
'rear'+'fencing'+'pole'='rearfencingpole'
'rearfencingpole' is an anagram of 'PEREGRINE FALCON'.
(Other definitions for peregrine falcon that I've seen before include "bird?" , "She kills small creatures" , "up in the air?" .)