Show of hands (4)
'show of hands' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for vote that I've seen before include "Mark on ballot paper" , "Poll" , "Decision by a majority" , "Put one's cross" , "Make election choice" .)
(Other definitions for salute that I've seen before include "Acknowledge (superior)" , "Gunfire, perhaps" , "Pay tribute to; greet" , "Honour" , "Kind of welcome" .)