Possible Clues:

• A southern Indian
• S. India/Sri Lankan person, tongue
• Language related to Malayalam
• One in race volunteers to cover six furlongs?
• Tongue that would wag heartlessly?
• Dravidian people of India and Sri Lanka
• 'Follow My Leader' enters the language
• Back including 'monsieur' in Asian language
• Language that gave us 'catamaran'
• Language from which 'curry' and 'catamaran' come