Related Clues:

• Emulates a 43-Across
• No longer has a secret
• Tells
• Warbles
• Lets the cat out of the bag
• Sings, so to speak
• Is indiscreet
• Does a ditty
• Joins the choir
• Doesn't zip one's lip
• Turns state's evidence, e.g.
• Joins the chorus
• Croons a tune
• Blurts out
• Croons tunes