The word drumbeaters 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™ Plays In The Letters
Seven Letter Word Alert: (83 words)
ambered, armrest, austere, barreed, barters, bearers, beaters, bedares, bedmate, bedrest, beermat, bemused, berated, berates, besmear, brumate, bursate, bustard, darters, daubers, dearest, debaser, debater, debates, deburrs, demates, demurer, detubes, dreamer, dumbest, eardrum, embased, embread, erasure, erratum, euaster, matured, maturer, matures, measure, medusae, murders, mustard, readers, readmes, reamers, rearmed, reasted, rebased, rebated, rebater, rebates, reburst, redates, redream, remated, remates, rereads, resumed, resumer, retards, reteams, retears, retrade, retread, rumbaed, sabered, sauteed, sedater, serrate, smarted, smarter, smeared, smearer, starred, steamed, steamer, subtree, tasered, tearers, traders, treader, ureters