That woman no different to a bird (5)
I believe the answer is:
heron
'bird' is the definition.
(I know that heron is a type of bird)
'that woman no different' is the wordplay.
'that woman' becomes 'her' ('her' refers to a woman).
'different' indicates anagramming the letters (letters placed in a different order).
'no' with letters rearranged gives 'on'.
'her'+'on'='HERON'
'to a' is the link.
(Other definitions for heron that I've seen before include "Tall wading bird" , "flier" , "Big bird" , "Large fish-eating bird" , "Wading bird with long neck and legs" .)