White wading bird (5)
I believe the answer is:
egret
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">white wading bird</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for egret that I've seen before include "white fish eater" , "White wading bird" , "Wader with white plumage" , "Long-plumed heron" , "White-feathered wading bird" .)