Coastal raptor (4)
I believe the answer is:
erne
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">coastal raptor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for erne that I've seen before include "Great lake in Fermanagh with lots of islands" , "'Sea-eagle, river and lough (4)'" , "European sea eagle" , "flyer in the main" , "Sea-eagle in an Irish lake" .)