Caterpillar roll ingredient (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">caterpillar roll ingredient</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 eel that I've seen before include "A sea snake" , "Slimy fish" , "Conger, e.g." , "Evasive type" , "slipper" .)