Related Clues:

• Bad habit maybe, missing a hundred in sum
• I don't aid (anag.)
• Extra sum at school?
• Reckoning it's not part of the original building
• Increase that could be paid in France
• What might be a plus for idiot -- and otherwise
• Attachment or obsession, getting caught out
• Without it there would be total ignorance
• Drug habit, but not about to get supplement
• Dependency with no source of cash is a plus
• Calculation of the sum of numbers
• Dependence with no source of codeine supplement
• Take nothing away from what Count will give you
• Commercial broadcast idiot put before new supplement
• Arithmetical operation