Communist leader, guzzling sherries, disposing of Nationalist criminal (7)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

MAO(Zedong, Chinese Communist leader) containing ( guzzling ) “finos”(very dry sherries/fortified wines originally from Spain) minus ( disposing of ) “n”(abbrev. for “Nationalist”). Defn: … who is a member of the Mafia, the criminal organisation.