The word ciderpress 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: 17
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (34 words)
cerises, crisped, crisper, decrier, decries, deicers, depress, derries, desirer, desires, despise, dresser, pierced, piercer, pierces, precise, preside, pressed, presser, pricers, recipes, redress, redries, repress, reprice, reprise, resider, resides, respice, respire, screeds, species, spicers, spiders