The word misleader 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: 14
Highest Scoring Words With Friends™ Play In The Letters misleader
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Seven Letter Word Alert: (28 words)
admires, aediles, dealers, dearies, delimes, derails, deslime, dialers, emailed, emerald, leaders, limeade, mailers, mealier, misdeal, mislead, misread, readies, readmes, realise, realism, redeals, redials, remails, seamier, seriema, sidearm, smeared