Possible Clues:

• Great Dane on the loose in outside refreshment area
• Angered at strange place for an outdoor cuppa
• Outdoor cafeteria
• Great Dane running around place for outdoor refreshments
• A type of open-air refreshment area
• Trail round English forest leading to open-air eatery
• Open-air cafeteria
• Grandee at fancy restaurant in the open air
• Terrible greed at an outdoor refreshment venue