Related Clues:

• Gave the game away
• Notified
• "I ___ you so!"
• Couldn't keep a secret
• Imparted
• "__ you!"
• Let in on
• Took effect
• Sang like a canary, so to speak
• Gave an account
• Related to what 30 across may have done, by the sound of it
• Related to the sound of the bell
• All this is entirely 30 across in the past
• All this is what it amounts to
• Revealed, as one's soul