Possible Clues:

• Not all of century -- ten I need back!
• ''Oh, the craic was ... in the Isle of Man'' (The Dubliners)
• "Baseball is __ percent mental. The other half is physical": Yogi Berra
• The English equivalent of quatre-vingt-dix
• Ten times a square
• Nunber you're up to when you're extremely busy
• You might be stopped for doing it
• Number that's in excess
• Degrees in a quarter turn?
• Over any Interstate limit