TALEBEARER

n. gossip, rumour-monger, gossip-monger, taleteller, talemonger, scandalmonger, tell-tale, troublemaker, quidnunc, tattler, informer, sieve, Chiefly US and Canadian tattle-tale, Slang bigmouth, blabbermouth, squealer, stool-pigeon, stoolie, rat, Brit sneak, nark, US fink, ratfink The words, spoken in private, were repeated to him by some talebearer