Snowy wader (5)
I believe the answer is:
egret
'snowy wader' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for egret that I've seen before include "Lesser white heron" , "flier" , "Kind of white heron - greet it" , "Bird eating fish" , "One of a pair of waders" .)