The word broadsiding 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: 19
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (30 words)
abiding, aboding, adoring, airings, android, angioid, arising, biasing, bidding, birddog, birding, borings, brogans, disband, disdain, donairs, dragons, inboard, indigos, inroads, ordains, origins, raiding, raising, ridding, ridings, rodding, signora, soaring, sodding