Remedy to do with bandage (7)
I believe the answer is:
redress
'remedy' is the definition.
(I know that remedy can be written as redress)
'to do with bandage' is the wordplay.
'to do with' becomes 're' (regarding).
'bandage' becomes 'dress' (I've seen this in another clue).
're'+'dress'='REDRESS'
(Other definitions for redress that I've seen before include "set things right" , "Make amends for" , "Put right" , "Get back into gear" , "Set right - compensation" .)