“A Broken Idol.”Ill A Broken Idol,” the sponsors, Hal Stevens arad Harry Williams and Egbert Van Alstyne, have supplied the book, score and music that have meaning. There is a clever plot, pretty lyrics and charming music all of which combined to go to make a concoction of mirthful, musical, far-cial frivolity, that sends the auditor to see the show again.—Gennett April 20.• • •