The word housewrecker 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: 25
Highest Scoring Words With Friends™ Plays In The Letters housewrecker
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Seven Letter Word Alert: (35 words)
cheerer, chewers, chokers, chouser, coherer, coheres, corkers, courser, crusher, echoers, rechews, rechose, recorks, recower, recrush, recures, recurse, reekers, rehouse, rescore, rescuer, reshore, reswore, reworks, rockers, scourer, screwer, securer, sheerer, shekere, shocker, shucker, usherer, workers, wrecker