Some eat snake and parrot (3)
I believe the answer is:
kea
'parrot' is the definition.
(I know that kea is a type of parrot)
'some eat snake and' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'KEA' can be found hidden inside 'eat snake and'.
(Other definitions for kea that I've seen before include "NZ flyer" , "Green NZ parrot" , "bird" , "Large New Zealand parrot" , "NZ mountain parrot" .)