Historical clue formulations

• Discolor from age — 2023-12-14
• See 44-Across — 2023-11-28
• Like lemons, but not oranges — 2023-05-31
• Like bananas and banana slugs — 2023-02-02
• Chicken — 2021-06-27
• Chicken — 2005-10-13
• Coward's color — 2005-07-18
• Gutless — 2004-02-21
• Shortest light — 2002-07-23