Serpent (3)
'serpent' is the definition.
(boa constrictor, type of snake)
This is the entire clue.
(Other definitions for boa that I've seen before include "feathers around the neck?" , "Large snake provides a neck decoration" , "Python" , "Large reptile" , "that's dangerous for South Americans" .)
'serpent' is the definition.
(asp is a kind of serpent)
This is all the clue.
(Other definitions for asp that I've seen before include "Cleopatra's poisoner" , "Joe Blake is Australian species" , "Egyptian cobra" , "the snake in Cleopatra''s bosom" , "Snake found in spa" .)
'serpent' is the definition.
(synonyms)
This is all the clue.
(Other definitions for snake that I've seen before include "Entertainer with music and reptiles" , "Chinese zodiac animal" , "Move sinuously" , "Slithering reptile" , "former EC currency band" .)