Related Clues:

• Inner self
• 'I strain'
• Self-importance
• 'I trouble?'
• Megalomaniac's problem
• Cause of many trips, once
• Trip starter?
• Id counterpart
• Type of maniac
• 60's trip cause
• Swellheadedness
• A smartypants may have a big one
• Dropped drug
• It might get in the way of an apology
• It may get bruised