The word grandstanders 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: (57 words)
address, agendas, andante, argents, arrange, arrests, danders, dangers, darners, darters, dastard, desands, dragnet, eartags, errands, errants, ganders, gardens, garners, garnets, garrets, garters, gnarred, gradate, graders, grandad, grander, granted, granter, grassed, graters, narrate, rangers, ranters, rasters, redrags, regards, regnant, regrant, resands, retards, saddens, saddest, sanders, searats, seastar, snarers, stagers, stander, starers, starred, strands, strange, tanager, tanners, teargas, traders