Historical clue formulations

• Interim — 2021-09-25
• Playing field? — 2020-04-23
• Not permanent — 2019-04-27
• "The perfect idiot's profession," per Katharine Hepburn — 2016-07-09
• Histrionic skill — 2015-07-10
• Trouper's skill — 2012-06-02
• Provisional — 2009-03-08
• Dramatics — 2004-03-21
• Temporary — 2003-02-07
• Temporary — 2002-06-30
• Job for a thespian — 1999-05-11
• Strasberg subject — 1997-09-21