noun (n)

• someone who intervenes with authorities for a person in trouble (usually using underhand or illegal methods for a fee)(noun.person)

  Synonym:
  influence peddler
  

  source: wordnet30
• a chemical compound that sets or fixes something (as a dye or a photographic image)(noun.substance)

  Synonym:
  fixing agent
  

  source: wordnet30
• a skilled worker who mends or repairs things(noun.person)

  Synonym:
  mender, repairer
  

  source: wordnet30
• synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction(noun.artifact)

  Synonym:
  dolophine hydrochloride, methadon, methadone, methadone hydrochloride, synthetic heroin
  

  source: wordnet30