Possible Clues:

• Applebee's buyer in 2007
• Rooty Tooty Fresh 'N Fruity restaurant
• Place to see stacks
• Eatery with a 'Two x Two x Two' option
• Breakfast place that's often open 24 hrs.
• Applebee's sister chain
• Chimps and gorillas
• Perkins competitor
• Breakfast chain acronym
• Place to order stacks