Related Clues:

• More than a dabbler
• With 45-Across, for the time being
• Expert, in slang
• A backer of
• Tennis club teacher
• Part of FWIW
• ___ example
• Moneymaker
• One side in a debate
• Tyro's mentor, perhaps
• Not against
• All for
• Stroke improver
• Gift-label word
• Con's opposite