The word steeplejacks 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: 32
Highest Scoring Words With Friends™ Play In The Letters steeplejacks
:
Seven Letter Word Alert: (23 words)
aspects, capless, caplets, caskets, castles, elapses, escapee, escapes, jackets, packets, pastels, pestles, petless, pleases, selects, spackle, speckle, staples, steeple, tackles, talkees, tealess, teasels