Reduced to ashes (8)
I think it could be either:
burnt to a cinder
'reduced to ashes' is the definition.
('cremate' can be a synonym of 'reduce to ashes')
This is all the clue.
(Other definitions for cremated that I've seen before include "Of corpse, burned to ashes" , "Burnt (a body)" , "Erect dam (anag)" .)