Possible Clues:

• Run-throughs
• 'Listen again, perhaps, to the lass for practice (10)'
• Practice sessions
• Training sessions for the players at the end of 15 across
• Show trials?
• Practices synonymous with the player's finishing in 15 across
• Practice sessions at the end of 15 across
• Runs through plays in empty house
• Opportunities to check the lines after casting
• Tries again Alan's dummy runs