The word splayfooted 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™ Plays In The Letters splayfooted
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Seven Letter Word Alert: (21 words)
adeptly, apostle, deploys, deposal, floated, flypast, folates, footpad, ooplast, petfood, polyose, poodles, seafood, splayed, spoofed, spooled, stapled, stooled, stooped, tadpole, telopod