Related Clues:

• Extensive exercise done by prisoners
• Extend time inside
• Heartless Scot to strain some porridge
• Time spent in gaol as part of course
• Increase prison sentence
• At the precise time when a neighbouring number goes cycling?
• Time for some magic
• Tax period
• Time inside extension
• Prison term that will make a bigger man of you?
• Length of time spent in prison
• Strain to heave stone first
• While in hospital, thought
• Turn Indian sign
• Period charm