Longman Dictionary of Contemporary English
black marketeer
noun
EXAMPLES FROM CORPUS
▪ For Kurzlinger, until then just a Berlin black marketeer and gangster, it became a profession.
Wiktionary
black marketeer
n. someone selling black market goods or trading on the black market
WordNet
black marketeer
n. someone who engages illegally in trade in scarce or controlled commodities
v. deal on the black market