Related Clues:

• Drip, say
• Spill it
• Spill a secret
• Lose air, as a tire
• Ruin a surprise
• State secrets
• Squeal, so to speak
• Chatter thoughtlessly
• Tell everyone
• Spill something
• Tap mishap
• A drop in the bucket, perhaps
• Unauthorized preview, say
• Tell a secret
• Secrecy breach