The word righthander 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™ Play In The Letters
Seven Letter Word Alert: (45 words)
angrier, darting, deraign, detrain, dragnet, drainer, earring, gnarred, grained, grainer, grander, granite, granted, granter, grinder, hagride, hairnet, handier, hardier, heading, hearing, heating, herding, herring, ingrate, randier, rangier, reading, rearing, regrant, regrind, retrain, righted, righter, tangier, tardier, tarried, tarring, tearing, terrain, thighed, tradein, trading, trained, trainer