The word clothespins 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: 21
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (86 words)
cession, cesspit, chipset, chisels, choline, clients, closest, closets, clothes, coltish, consist, cosiest, cosines, enlists, epsilon, ethnics, hipness, histone, holiest, hoplite, hospice, hostels, hostile, hotline, hotness, incests, insects, insoles, inspect, insteps, iphones, isohels, lection, leptons, lesions, lichens, lioness, lionets, listens, nepotic, nosiest, notches, notices, oecists, ossicle, pectins, pencils, phenols, phonics, phonies, pinches, pinhole, pinless, pistols, pistons, pitches, pitless, pleions, poetics, polices, postils, potiche, schleps, section, septics, silents, siphons, sphenic, spinels, spinets, spinose, splenic, splices, splines, splints, splotch, stencil, stepson, stonish, thiones, tinsels, tipless, tocsins, tonsils, topless, topline