Historical clue formulations

• Turn from solid to liquid — 2026-09-13
• Get gooey, maybe — 2026-01-26
• Un-solid-ify — 2025-12-11
• Panini, e.g. — 2024-12-14
• Hot deli order — 2024-09-12
• What dry ice doesn't do — 2024-08-04
• Liquid-ate? — 2024-03-12
• Turn into a puddle, maybe — 2023-10-15
• Become liquidy — 2023-09-24
• What ice cream and hearts may do — 2023-02-15
• What chocolate and hearts may do — 2022-12-03
• Diner order — 2022-05-29
• Die like the Wicked Witch of the West — 2021-09-12
• What ice cubes do in the hot sun — 2021-05-17
• Go soft — 2020-01-07
• Disappear, as snow — 2019-09-23
• Go from one state to another? — 2019-09-15
• Hot sandwich — 2018-08-07
• What snowmen do in the sun — 2018-06-13
• Tuna ___ — 2018-06-12
• Wrap alternative — 2018-05-17
• Start running — 2017-08-08
• Go soft — 2016-07-20
• Endure a temperature of 110°, say — 2015-11-19
• What a 40-Across produces in the summer — 2015-08-09
• Short-order sandwich — 2014-11-16
• Go the way of snowmen — 2014-06-09
• Go soft — 2013-08-04
• Go weak in the knees — 2012-10-28
• Go soft — 2012-08-22
• Tuna ___ — 2012-05-01
• Disappear à la Frosty — 2010-12-28
• Cheesy sandwich — 2010-10-19
• Alternative to a B.L.T. — 2010-08-19
• Cheesy sandwich — 2010-05-11
• Opposite of freeze — 2010-03-29
• Soften — 2010-01-06
• Go weak at the knees — 2009-05-28
• Unfreeze — 2009-05-04
• Cheesy entree — 2009-01-28
• Become squishy, like chocolate — 2008-09-10
• Sandwich from the oven — 2006-11-29
• Go soft, as butter — 2006-03-13
• Dish with tuna and cheese — 2006-02-21
• Soften, as chocolate — 2005-07-06
• Change states, in a way — 2005-03-26
• Lunch counter offering — 2004-12-11
• Lose one's resistance — 2004-09-12
• Hot sandwich — 2003-04-30
• Liquefy — 2002-09-17