noun. An informant, especially one who informs against others for compensation.

noun. One who informs or animates.

noun. One who imparts intelligence or gives information; an informant.

noun. In law, one who communicates to a magistrate a knowledge of a violation of law; a person who lays an information against or prosecutes in the courts one who offends against the law or any penal statute.

noun. Hence One who makes a business of informing against others; a mischief-maker.

noun. Synonyms Informant, Informer. See informant.

noun. One who informs, animates, or inspires.

noun. One who informs, or imparts knowledge or news.

noun. One who informs a magistrate of violations of law; one who informs against another for violation of some law or penal statute.

noun. one who habitually gives information of the violation of penal statutes, with a view to a prosecution therefor.

noun. One who informs someone else about something.

noun. A person who tells authorities about improper or illegal activity.

noun. one who reveals confidential information in return for money

"To turn these facts into "Socialist icon who became an informer" is itself (sorry, but it's irresistible)"

informant  source  

Fink  canary  copper's nark  grass  nark  

dormer  former  performer  reformer  stormer  

alloit  bangladeshi  black-bodied  bold-faced  career-threatening  

Benedict Arnold  Brutus  Judas  Judas Iscariot  Quisling