Diced (5)
I believe the answer is:
cubed
'diced' is the definition.
('cube' can be a synonym of 'dice')
This is all the clue.
(Other definitions for cubed that I've seen before include "Like some sugar" , "Divided up" , "To the power of three" , "Diced - raised to the third power" , "One is so unchanging" .)