Related Clues:

• Aerofoil on a fast car
• One line in translated prose, a giveaway of what's to come
• 'Darth Vader is Luke's father,' e.g
• Returning engineer flaps about nothing — one who says too much
• 'Rosebud is a sled,' e.g
• Aerofoil at the back of a car to reduce lift at high speeds
• Giveaway section on flier
• Tories all repent, not half floundering — look away, if you don't want to know!
• Overindulgent type who gives the game away
• Disclosure of plot to overindulge head of state
• '68-Across is DYES,' for example
• One ruining device that lowers lift
• “The apes’ planet is Earth,” e.g
• Special fuel, I hesitate to say, that’s given away too much
• Unwanted information, usually