Largest-wingspan bird (9)
I believe the answer is:
albatross
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">largest-wingspan bird</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for albatross that I've seen before include "Great hole" , "See 7" , "Ocean bird; a burden (round neck)" , "Southern hemisphere seabird" , "As Borstal is adapted for a big bird" .)