Cephalopod mollusc (8)
'cephalopod mollusc' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for nautilus that I've seen before include "Cephalopod mollusc" , "Nemo's vessel" , "Nemo's sub (Verne)" , "Spiral-shelled mollusc" , "Mollusc and first nuclear-powered submarine" .)
'cephalopod mollusc' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for squid that I've seen before include "Eight-armed creature" , "Tentacled marine creature" , "Catch" , "Ten-armed mollusc" , "Marine cephalopod" .)