Destroy, raze (8)
I believe the answer is:
demolish
I believe this clue is a double definition.
'destroy' is the first definition.
(I know that demolish is a more specific form of destroy)
'raze' is the second definition.
(I've seen this in another clue)
(Other definitions for demolish that I've seen before include "Destroy completely" , "Knock down, a building or argument perhaps" , "Knock or tear down" , "Eat up" , "Knock down, say a building" .)