Possible Clues:

• “The apes’ planet is Earth,” e.g
• Tories all repent, not half floundering — look away, if you don't want to know!
• Giveaway section on flier
• Aerofoil at the back of a car to reduce lift at high speeds
• 'Rosebud is a sled,' e.g
• Returning engineer flaps about nothing — one who says too much
• 'Darth Vader is Luke's father,' e.g
• One line in translated prose, a giveaway of what's to come
• Aerofoil on a fast car
• Agents about to steal painting -- it could ruin everything