DIED. ALEXIS SMITH, 72, theater and movie star; in Los Angeles. As a contract player during the 1940s and '50s, the exquisite, statuesque Smith appeared with some of the great male stars of the age--Gable, Flynn, Grant--and a lesser-known actor named Reagan. With age, her Hollywood career inevitably faded, but in 1971 Smith made a stage triumph as a worldly-wise former Ziegfeld Follies show girl in Stephen Sondheim's Follies, a memorably cynical performance for which she won a Tony Award.