THESAURUS
tipster
adventurer, adviser, announcer, annunciator, authority, betrayer, betting ring, bettor, boneshaker, canary, cardshark, cardsharp, cardsharper, channel, communicant, communicator, compulsive gambler, crap shooter, dopester, enlightener, expert witness, fink, gambler, gamester, gossipmonger, grapevine, hazarder, informant, information center, information medium, informer, interviewee, monitor, mouthpiece, nark, newsmonger, notifier, petty gambler, piker, player, plunger, press, public relations officer, publisher, punter, radio, reporter, sharp, sharper, sharpie, snitch, source, speculator, spokesman, sport, sporting man, sportsman, squealer, stool pigeon, talebearer, tattler, television, teller, tinhorn, tout, touter, venturer, wagerer, witness