Historical clue formulations

• Resonates beautifully — 2026-06-20
• Turns state's evidence — 2024-10-13
• Finks — 2023-11-09
• Snitches — 2020-04-12
• Emulates a Disney princess — 2018-08-08
• Is a canary — 2018-05-31
• Squeals — 2009-07-30
• Emulates a 43-Across — 2004-08-20
• Is a rat — 2004-05-16
• Acts the stool pigeon — 2004-01-06
• Squeals — 2003-04-20
• Turns state's evidence — 2000-01-20