Historical clue formulations

• Secure — 2025-02-07
• Car key button — 2023-08-27
• Partner of 65-Across — 2022-06-04
• Sure thing — 2021-11-06
• Stone-cold cinch — 2018-10-04
• Overwhelming favorite, informally — 2018-06-23
• Product of Yale or Medeco — 2018-03-13
• Certainty — 2018-01-26
• Key's partner — 2016-08-15
• Product of Yale — 2014-04-20
• Sure thing — 2013-02-09
• Where tumblers can be found — 2012-04-01
• Canal part — 2011-05-29
• Combination ___ — 2009-01-19
• Sure winner — 2008-10-24
• Canal section — 2004-05-12
• Wrestling hold — 2001-08-07
• It may be picked — 1999-09-04
• Canal device — 1996-11-30