wheeler-dealer
From Longman Dictionary of Contemporary EnglishRelated topics: Business basics, Politicswheeler-dealerˌwheeler-ˈdealer noun [countable] BBPPsomeone who does a lot of complicated, often dishonest deals, especially in business or politicsExamples from the Corpuswheeler-dealer• Where Mr Perot has built real companies, Mr Riordan's career has mainly been spent as a wheeler-dealer.• He was now presenting himself as a cynical hard-nosed East End wheeler-dealer.