The word politicising 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: 22
Highest Scoring Words With Friends™ Plays In The Letters politicising
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Seven Letter Word Alert: (28 words)
closing, coiling, colitis, copings, copsing, costing, gnostic, iconist, lisping, listing, oligist, pilings, pinitol, poising, politic, posting, psionic, scoping, silicon, silting, slicing, sloping, soiling, solicit, spicing, spiting, tilings, toiling