Jump quietly, with a cry (3)
I believe the answer is:
hop
'jump' is the definition.
(hop is a kind of jump)
'quietly with a cry' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'with' says to put letters next to each other.
'a cry' becomes 'ho'.
'p' after 'ho' is 'HOP'.
(Other definitions for hop that I've seen before include "..., skip and jump" , "Dancing party (informal)" , "Beer flavouring; jump" , "Jump lightly" , "Jump; dance" .)