fixer

definition: synthetic narcotic drug similar to morphine but less habit-forming
example:
speech part: noun
synonyms: methadone
definition: someone who intervenes with authorities for a person in trouble (usually using underhand or illegal methods for a fee)
example:
speech part: noun
synonyms:
definition: a skilled worker who mends or repairs things
example:
speech part: noun
synonyms: mender repairer
definition: a chemical compound that sets or fixes something, as a dye or a photographic image
example: The photographer let the prints soak in the fixer for five minutes.
speech part: noun
synonyms: fixing agent

How fixer is being used?