The word nursemaid 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: 15
Highest Scoring Words With Friends™ Play In The Letters nursemaid
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Seven Letter Word Alert: (27 words)
admires, arenium, asunder, damners, durians, insured, maidens, manured, manures, marines, medians, minders, misread, radiums, remains, remands, reminds, sandier, sardine, seminar, sidearm, sideman, sirname, surname, unaimed, unaired, unarmed