Historical clue formulations

• Air passage — 2026-01-27
• Channel — 2025-06-07
• One might be full of tears — 2025-01-31
• Word before tape or after tear — 2023-09-11
• What might bring the heat — 2023-07-07
• Air carrier — 2022-01-16
• Channel — 2020-05-29
• It may bring a tear to one's eye — 2018-07-01
• Channel for fumes — 2017-10-03
• Airway or pipe — 2016-08-17
• Prison escape path, maybe — 2015-08-30
• ___ tape — 2014-06-30
• Passage — 2013-04-07
• Kind of tape — 2013-02-03
• Air passage — 2011-01-10
• Tube — 2009-06-14
• It'll bring a tear to your eye — 2008-07-07
• Channel — 2007-07-24
• Main — 2007-07-05
• Way in or out — 2005-10-07
• Water carrier — 2005-08-28
• Canal — 2005-03-05
• Pipe up or down? — 2001-09-02
• Way in or out — 2001-08-10
• Tear carrier — 2001-03-27
• It brings a tear to the eye — 2000-10-06
• Cable conduit — 1999-12-02
• Airpipe, e.g. — 1999-09-27
• It brings tears to one's eyes — 1999-04-23
• Passageway — 1997-08-06
• Conduit — 1995-01-15