Skate's cousin (5)
I believe the answer is:
manta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">skate's cousin</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 manta that I've seen before include "Devilfish" , "Giant ray" , "Kind of ray" , "Large ray" .)