Long-winged hawk (6)
I believe the answer is:
falcon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">long-winged hawk</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 falcon that I've seen before include "Kind of hunting bird - peregrine is one" , "Long-winged hawk" , "Hunting bird like peregrine or merlin" , "that's seen flying" , "Hunting bird, may be trained" .)