Related Clues:

• Let slip
• Got out
• Disclosed
• Released secretly
• Passed illegally, maybe
• Let out a secret
• Made known, sub rosa
• Dripped from the pipe
• Disclosed, as secret data
• Didn't hold water
• Couldn't keep a secret
• Escaped, as liquid
• Divulged guide covering Kildare
• Wasn't watertight
• Reported prematurely