The word espaliers 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: 13
Highest Scoring Words With Friends™ Play In The Letters espaliers
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Seven Letter Word Alert: (30 words)
airless, asperse, aspires, earless, elapses, leapers, leasers, lipases, lispers, palsies, paresis, pieless, pleaser, pleases, praises, presale, realise, relapse, repeals, repiles, replies, resails, resales, reseals, sailers, sealers, serapes, serials, spirals, spireas