Historical clue formulations

• They don't put up with any bull — 2021-10-01
• Corrida combatants — 2020-02-02
• Caped fighters — 2019-03-03
• Ones whose work may have sticking points? — 2017-12-09
• Stars in a ring — 2010-04-14
• Corrida combatants — 2007-10-25
• Bulls' opponents — 2005-06-16
• They don't shoot the bull — 2003-06-27
• Bull session participants? — 2000-12-17
• Bullfighters — 1999-02-08
• Figures in capes — 1996-06-16