Related Clues:

• Feel a dull pain
• Tummy problem
• Naproxen target
• Result of overexercise, perhaps
• Smart but not intelligent?
• 20-Across target
• "Royal" annoyance
• Pain in the gut
• Need aspirin, maybe
• There's no gain without it
• Workout aftermath, perhaps
• Tooth or tummy problem
• Yearn passionately
• Motrin target
• Workout aftermath, maybe