Rattle (7)
'rattle' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for vibrate that I've seen before include "tremble" , "Shake, quiver, or throb" , "Move rapidly to and fro" , "Quiver rapidly, resonate" , "Oscillate rapidly" .)
'rattle' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for maraca that I've seen before include "Instrument made from a filled gourd" , "One of a pair of hollow pieces of wood or bone for Spanish dancing" , "Instrumental gourd" , "One of a pair used by Spanish dancer" , "Rattle used as a rhythm instrument" .)