Possible Clues:

• Play up to the audience
• A sum of money to act as umpire on what to put up for the best view
• Racecourse building
• Place for fans
• With £1000, pay for seats here
• Foreign money invested in sporty car and place for watching sport?
• Terrific place to buy lemonade?
• Such a good view of Great Bear?
• Main structure for watching sporting events
• Show off in America or Greece balancing feat that's not hard