Historical clue formulations

• Santa player in "The Man in the Santa Claus Suit" — 2016-12-19
• ... and 101-Across are known for their fancy footwork — 2007-04-29
• Other half of the Hollywood duo — 2001-11-26
• Star born May 10, 1899 — 1999-05-10
• The Flintstones' favorite dancer? — 1997-04-02