Slide and jump not quite to the end (3)
I believe the answer is:
ski
'slide' is the definition.
(skis slide over snow)
'jump not quite to the end' is the wordplay.
'jump' becomes 'skip' (synonyms).
'not quite to the end' means to remove the last letter.
'skip' with its last letter taken away is 'SKI'.
'and' is the link.
(Other definitions for ski that I've seen before include "Winter sport equipment" , "Descend fast" , "Winter sport attachment" , "Winter-sports item" , "Winter sports footwear" .)