Possible Clues:

• Inspiration in test leading to one day of victory
• The whys and wherefores of new movie about time
• Rationale
• Purpose — incentive
• Why someone may commit a crime
• Reason second up-and-coming musical is cut short
• Inducement of sex rejected in advance
• Claim in court
• Reason I vote differently after Macron's summit
• Test the writer’s reason for action