Bounded, sprang (5)
I believe the answer is:
leapt
This clue is a double definition.
'bounded' is the first definition.
(I've seen this in another clue)
'sprang' is the second definition.
(I've seen this before)
(Other definitions for leapt that I've seen before include "Jumped on plate" , "moved up quickly" , "Bounded, sprang" , "Jumped, sprang" , "gone up dramatically" .)