Junk carried out to conceal damage (7)
I believe the answer is:
discard
'junk' is the definition.
(thesaurus)
'carried out to conceal damage' is the wordplay.
'carried out' becomes 'did' (I've seen this before).
'to conceal' is an insertion indicator.
'damage' becomes 'scar' (I've seen this before).
'did' placed around 'scar' is 'DISCARD'.
(Other definitions for discard that I've seen before include "Get rid of" , "Jettison" , "Abandon" , "Shed" , "Throw away or cast off" .)