Related Clues:

• 'I trouble?'
• Human soul
• Megalomaniac's problem
• Trip starter?
• Id counterpart
• Type of maniac
• Swellheadedness
• A smartypants may have a big one
• It might get in the way of an apology
• It may get bruised
• Result of self aggrandizing
• Personality
• Blowhard's trait
• 'I' trouble?
• Diva's downfall, maybe