I believe the answer is:
'jumps' is the definition.
('leap' can be a synonym of 'jump')
This is all the clue.
(Other definitions for leaps that I've seen before include "Pales (anag.)" , "Makes fast progress - by . . . . . and bounds" , "Jumps or springs suddenly" , "Pales in vaults" , "Jumps or bounds" .)