Possible Clues:

• A plan to deceive
• Attempted deception
• Ultimately, Irish bull includes a joke
• Hardwoods called for a trick?
• Fool Henry beheaded to win round?
• 1938 "The War of the Worlds" broadcast, for one
• Kid giving old Vietnamese leader a kiss
• A leg-pull
• Finishes off with two aquaria and ten cod
• Chain letters, usually