Possible Clues:

• Anxiety-related med. condition
• Adrian Monk's psychological condition: Abbr
• Disorder in 'Pure' by Rose Cartwright
• Monk's condition, for short
• Checking condition, for short
• Condition of TV’s Monk
• Monk's condition: Abbr
• Condition with tics, for short
• Repetitive condition: Abbr
• Neatnik's condition, perhaps