Possible Clues:

• Crunch abs, e.g.
• Train, work out
• Work out tax cut by the Queen
• This book, Smith Minor, is not about physical training
• Jog or do push-ups
• Bodily exertion
• Queen, during duty, to perform physical activity
• Use fear regularly to cut tax
• *Hit the gym (first 2 + last 4)
• Physical activity cut out without hesitation