Historical clue formulations

• Tinkered (with) — 2023-06-08
• Tinkered (with) — 2020-01-18
• Fooled (around) — 2017-09-05
• Blundered, with "up" — 2011-11-04
• Goofed (around) — 2007-11-01
• Bungled, with "up" — 2006-07-23
• Slipped (up) — 2002-06-27
• Interfered (with) — 1994-06-15