Historical clue formulations

• One getting in on the hustle? — 2020-12-05
• One working on steps — 2013-03-29
• Fred Astaire or Ginger Rogers — 2012-12-11
• One who might wear slippers — 2011-08-04
• Astaire or Rogers — 2004-11-30
• Ballerina — 2003-12-25
• Jitterbug, e.g. — 1998-12-06
• Number two of eight — 1998-09-03
• Companion of Cupid — 1998-08-15
• Ball boy or ball girl? — 1998-07-04
• Martha Graham, e.g. — 1997-03-10