Destroy, raze (8)
I believe the answer is:
demolish
I believe this is a double definition.
'destroy' is the first definition.
(I know that destroy can be written as demolish)
'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" .)