Rubbish written about husband's do (6)
I believe the answer is:
thrash
'do' is the definition.
(both can mean to attack or harm someone)
'rubbish written about husband's' is the wordplay.
'rubbish' becomes 'trash' (synonyms).
'written about' means one lot of letters goes inside another.
'husband' becomes 'h' (abbreviation).
'trash' enclosing 'h' is 'THRASH'.
(Other definitions for thrash that I've seen before include "Administer severe beating to" , "Lay on - party" , "Decisively beat" , "Beat thoroughly or make wild movements" , "Beat violently" .)