Noisy toy and snake (6)
I believe the answer is:
rattle
'noisy toy and snake' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for rattle that I've seen before include "cause nervousness" , "Disconcert - English conductor, b. 1955" , "Irritating sound" , "Baby's toy - conductor" , "rabbit" .)