fixer

A fixer is someone who is assigned or contracted to solve problems for others. The meaning of the term varies by context. In British or Commonwealth countries it refers to a person such as a special adviser who "gets things done." In American English it implies that the methods used are of questionable morality or legality: in organized crime fixers, or "cleaners," dispose of incriminating physical evidence such as bodies or witnesses; in sports a fixer is someone who pre-arranges the outcome of a contest; in journalism a fixer is a local person who expedites the work of a (foreign) correspondent.