Jump on ice and cut line (4)
I believe the answer is:
axel
'jump on ice' is the definition.
(I've seen this before)
'cut line' is the wordplay.
'cut' becomes 'axe' (I've seen this before**).
'line' becomes 'l'.
'axe'+'l'='AXEL'
'and' acts as a link.
(Other definitions for axel that I've seen before include "Figure-skating jump" , "What skater may do" , "Ice-skating jump" , "Skating jump involving a mid-air turn" , "Jump executed on ice" .)