Related Clues:

• Material - exercise
• Exercise - bore a hole
• Exercise by repeated practice — bore
• Stout cotton cloth
• Maybe private practice doctor takes sick?
• Bore — exercise
• Repetitive practice
• Work out old homework
• (Correct) procedure
• Physical training or exertion
• Boot camp routine
• Word after fire or power
• Beneficial activity that ends the answers to starred clues
• Not well, goes to doctor — that's the routine
• Medic in touch with ailing bore