Large oceanic bird (9)
I believe the answer is:
albatross
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">large oceanic bird</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 albatross that I've seen before include "Oceanic bird - golf score" , "Great hole" , "As Borstal is adapted for a big bird" , "Atlas bros alter the large bird with narrow wings" , "Large oceanic bird" .)