Historical clue formulations

• Trick of being suddenly nowhere to be found … or an apt description of victory for a 59-Down player? — 2022-09-09
• What something goes *poof* in — 2019-08-23
• Part of a magic show — 2017-08-24
• Exam that's losing popularity in high schools? — 2016-07-13
• Avoidance maneuver — 2015-07-26
• Apt title for this puzzle — 2001-08-16
• Illusionist's feat — 1999-04-02
• Favorite feat of 4-Down? — 1997-04-10