The word alchemistic 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: 23
Highest Scoring Words With Friends™ Play In The Letters alchemistic
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Seven Letter Word Alert: (42 words)
accites, achiest, aitches, alethic, ascetic, atheism, cachets, calcite, caliche, calmest, caltech, castile, catches, chalets, chalice, chemics, chemist, chilies, ciliate, clastic, cliches, climate, clitics, elastic, elicits, elitism, ethical, halites, hamlets, icicles, ischiac, ischial, italics, laciest, laicise, latches, malices, matches, metical, miscite, satchel, sciatic