The word uncluttering 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 uncluttering
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Seven Letter Word Alert: (24 words)
cittern, clinger, clitter, clutter, culture, curling, cutline, cutting, eluting, glitter, gruntle, letting, netting, nuttier, nutting, renting, ringlet, rutting, tenting, tingler, trunnel, turning, uncling, unguent