The word extortionists 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: 21
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (47 words)
erosion, extorts, inosite, inserts, intorts, ioniser, ionises, ironies, nitrite, nittier, noisier, noosers, norites, nosiest, notists, orients, osteons, retints, risotto, rosiest, seniors, sextons, sinters, sitters, sixties, snotter, sooners, soonest, sootier, sorties, stetson, stoners, stonier, stories, tensors, tiniest, tinters, tintier, titters, toonies, tooters, tootsie, tornote, torsion, totters, triones, xerosis