Possible Clues:

• Horse race
• Type of horse race
• Race with jumps
• Chelsea exuberant after difficult race
• Tip from church? Go after horsey competition
• It's expensive letting champion put in for gruelling race
• A religious point to follow in secular pursuit?
• Running event over hurdles and water jumps
• HorseВ race over an obstructed course
• Race headlong to quirky Chelsea ...