Related Clues:

• Conceal a thing or fact - . . . . . up
• Conceal, screen
• A hundred left? That puts the lid on it!
• On top of everything, the century has finished
• On top of everything else there's a hundred to spare
• Is there a hundred left on top?
• On top of it all there's a hundred left at the end
• Is the hundred finished on top of everything else?
• The century had finished with 23 down
• Left with a hundred on top of the top
• Insurance for this with a hundred to spare
• Spy's assumed identity
• On the outside there's a hundred left
• Incognito traveler's invention
• Rap sheet name, maybe