List finished — prize carried forward (8)
I believe the answer is:
rollover
'prize carried forward' is the definition.
(eg rolled over to another week)
'list finished' is the wordplay.
'list' becomes 'roll' (roll is a kind of list).
'finished' becomes 'over' (over can mean finished or ended).
'roll'+'over'='ROLLOVER'
(Other definitions for rollover that I've seen before include "Be easily defeated" , "Prize money taken forward" , "Multiple-week jackpot" , "big lottery prize" , "Chance for an even bigger Lotto jackpot" .)