Possible Clues:

• Where love hardly conquers all
• Fifteen a side makes this game equal for a start
• Roger Federer's sport
• At which Betjeman's subaltern, perhaps tactically, did not shine
• Popular racquet game - anyone for it?
• After tea one gets to the court in Clare (6)
• Sport Dwight Davis gave trophy for
• Sent in to play the game, oddly
• McEnroe's game
• Game for courting couples?