The word craftsmanship 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: 28
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (76 words)
airmass, amritas, anaptic, anarchs, aphasic, arctans, armpits, arshins, artisan, artsman, caftans, cantrap, cantrip, capstan, captain, casspir, catfish, catnaps, catnips, chapman, fanatic, fascias, fascism, fascist, frantic, haircap, haptics, harpist, hatpins, impacts, imparts, infarct, instars, maniacs, mantrap, mantras, marinas, martian, martins, miscast, mishaps, panfish, parfait, pariahs, patinas, piranha, racisms, racists, rainhat, rampant, rapists, raspish, ratfish, safaris, sarcasm, satanic, satraps, scrimps, scripts, shamans, shipman, shrifts, shrimps, spartan, spasmic, spastic, spinach, sprains, sprints, stamina, strains, tarmacs, tarnish, tarpans, tsarina, tsarism