Possible Clues:

• Tartar sauce ingredient
• Sports vehicle tours in escapade
• Escapade with pickled fruit
• Exercise in estate, perhaps, as a prank
• Tangy bud in a piccata recipe
• Piccata bud
• Frolic, gambol
• Dubious activity of primate disturbing current king
• King entertains primate in light-hearted event?
• Lark's head in front of rook