Involved legal company starting on politician (9)
I believe the answer is:
complicit
'involved' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'legal company starting on politician' is the wordplay.
'legal' becomes 'licit' (similar in meaning).
'company' becomes 'co' (abbreviation).
'starting' is a charade indicator (letters next to each other).
'on' indicates putting letters inside (as in clothing 'on' a person).
'politician' becomes 'MP' (Member of Parliament).
'licit' after 'co' is 'colicit'.
'colicit' enclosing 'mp' is 'COMPLICIT'.
Can you help me to learn more?
(Other definitions for complicit that I've seen before include "not without guilt?" , "Involved with others in law-breaking" , "Being party to a crime" , "Unlawfully involved" , "Being involved in wrongdoing" .)