Bird with a long curved bill (6)
I believe the answer is:
curlew
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bird with a long curved bill</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for curlew that I've seen before include "Wading bird with long down-curved beak" , "Wading bird with long slender curved bill" , "Large shorebird" , "Flyer" , "Wader with downcurved bill" .)