Dweller in the cracks of a sunken ship, maybe (3)
I believe the answer is:
eel
(Other definitions for eel that I've seen before include "Wriggly fish" , "Apode" , "Elongated fish" , "Slimy fish" , "Slippery figure" .)
I believe the answer is:
eel
(Other definitions for eel that I've seen before include "Wriggly fish" , "Apode" , "Elongated fish" , "Slimy fish" , "Slippery figure" .)