Related Clues:

• Power one's written next to variable in base ten?
• Practitioner
• Promoter (of an idea or theory)
• What a logarithm is, essentially
• Promoter of an idea or theory
• Champion, advocate
• Advocate no longer confined, holding on?
• The power of mathematics
• Someone who interprets or explains
• Former adversary deprived of work, a symbol of power
• Divorcee gets to post individual good books by apostle
• Finally, the Times replaces work from rival advocate
• Former lover confined welcomes working advocate
• Advocate international exhibition having indemnity regularly
• One demonstrating skill and power