The word gossipmonger is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (65 words)
egoisms, engross, erosion, gingers, goopier, goosier, goosies, goosing, gorgons, groping, ignores, imposer, imposes, impress, ingress, ionomer, isogons, isomers, merging, messing, mispens, mongers, mooring, mossier, mossing, noisome, noosers, oosperm, operons, orogens, perming, persons, pigeons, pingers, pingoes, poisons, poroses, porosis, premiss, prisons, promise, regions, resigns, respins, romping, rooming, seniors, serging, sermons, signers, signors, simpers, singers, snipers, snogger, snooper, soggier, somonis, sooners, spinose, sponger, sponges, sponsor, sporing, springs