Related Clues:

• Go back (on)
• Fail to keep one's word
• Bridge blunder
• Fail to follow suit, in bridge
• Back out of an agreement
• Disappoint, in a way
• Go back on one's word
• Bridge no-no
• Play the wrong suit
• Commit a gaffe in bridge
• Ruff without a void, e.g.
• Card table error
• Deny or renounce
• Fail to follow suit or fulfil a promise
• In card games, revoke