Possible Clues:

• Annual June celebration
• Leonine family
• 'The possession of fools': Herodotus
• Cats from pit scared by a group of ferocious animals
• Saw lions disappear at the end of every summer?
• ''The ___ of the Yankees''
• Pressure to go up: a cause of swelling?
• Some big cats for Germany, after the middle of April
• Animals banding together is what leads to destruction
• It goes before a fall