Historical clue formulations

• *Renewable energy source … and the end of the word ladder — 2024-04-22
• Air force? — 2023-08-20
• Current — 2021-11-06
• Word before chill or chimes — 2020-07-27
• Trachea — 2019-09-18
• Air condition? — 2019-02-07
• Tucker out, in a way — 2018-11-03
• Notable feature of Chicago — 2018-09-12
• Eurus, in Greek mythology — 2017-11-22
• Kite flier's need — 2016-08-22
• Empty talk — 2014-02-20
• Make tired — 2008-07-19
• Kiting necessity — 2008-04-22
• Oboe, e.g. — 2007-05-08
• Chimes player — 2007-01-16
• Empty talk — 2003-06-04
• Chicago phenomenon — 2002-11-11
• Flag waver? — 1998-07-03
• Weather vane turner — 1998-02-10
• Gale — 1996-04-29
• "Inherit the___" — 1996-04-02
• Crank (up) — 1994-12-02