More than enough - roll into a ball! (9)
I believe the answer is:
'more than enough' is the definition.
'roll into a ball' is the wordplay.
'roll' becomes 'bun' ('bun' can be a synonym of 'roll').
'into' means one lot of letters goes inside another.
'ball' becomes 'dance' (I've seen this before).
'bun' put inside 'adance' is 'ABUNDANCE'.
(Other definitions for abundance that I've seen before include "fullness" , "Danube can flow with plenty" , "call at whist" , "'Plenty, loads (9)'" , "Plentiful supply" .)