Expungement (7)
I believe the answer is:
erasure
'expungement' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for erasure that I've seen before include "Wiping out - English pop duo" , "Removal" , "Censorship" , "Band with Andy Bell and Vince Clarke, or wipe-out" , "Obliteration of data" .)