Wading bird, say, with others missing sun initially (5)
I believe the answer is:
egret
'wading bird' is the definition.
(egret is a kind of wading bird)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for egret that I've seen before include "White-plumed wader" , "Wading bird like a heron" , "Lesser white heron" , "Kind of heron with long white feathers" , "Bird eating fish" .)