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
- 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
- Contribution to revenue exacted by the state
- Exercise period in prison
- Time lag's got to be extended
- Exhibit plasticity
- Start calisthenics