The word cerecloths 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: 19
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (24 words)
chortle, cloches, clothes, coerces, coheres, colters, creches, creoles, crochet, echoers, elector, etchers, heteros, holster, hostler, lechers, rechose, reclose, retches, roselet, screech, shelter, torches, trochee