Possible Clues:

• Canyon's cousin
• Spot for rock climbing stuff
• Defender of England, not Europe? Get stuffed!
• Overeat Cheddar?
• Old US VP taking in grand valley
• Greedily eat egg or bananas
• Surfeit of blood and guts originally included
• 'Heaven can — us with our own desires' (Further Adventures of Robinson Crusoe, Defoe)
• Olduvai ___ (site of many early hominid fossils)
• Deep chasm