Possible Clues:

• Jape, a cool trick played, nothing less?
• Unkind prank
• Trick
• Despite its name, it's normally neither useful nor amusing!
• April first activity
• Chap going round back of Primark after plain rag
• Trick played in lesson almost surprising figure in pack?
• Jape — hoax
• Trick played on a victim
• Trick from a card you'd rather not be dealt?