Related Clues:

• Work out duty to protect the Queen
• Tries in physical practice
• Bore a hole
• Tries during proper practice session
• Train going into the river - awful cries
• TT race practice
• Queen duty-bound to keep physically fit
• Exercise by repeated practice
• Tries in physical exercise
• Training
• Doctor with invalid -- one likely to be boring
• Tries again with a learner for practice
• Practice prior to a performance
• Military training
• Make a hole in material