Disapprove of what models do after work (6)
I believe the answer is:
oppose
'disapprove of' is the definition.
(thesaurus)
'models do after work' is the wordplay.
'models do' becomes 'pose' (I can't justify this - if you can you should believe this answer much more).
'after' says to put letters next to each other.
'work' becomes 'op' (abbreviation for opus).
'pose' after 'op' is 'OPPOSE'.
'what' acts as a link.
Can you help me to learn more?
(Other definitions for oppose that I've seen before include "Resist; play against" , "'Refute, stand against (6)'" , "match" , "Bar" , "Resist, be hostile to" .)