Possible Clues:

• Logically derived
• Argued about a boy being given appropriate name
• Worked it out about a child, Edward
• Thought it out about your boy Edward
• Worked out through logic and sense
• Spoke logically, thought and drew conclusions
• Worked out it's because one is in colour
• In theatre, as one doctor performed a brain operation
• Debated in calm and logical way
• It's thought to rush around a boy