Possible Clues:

• Is the missus OK doing time there?
• Union member properly in prison once
• Liberty, perhaps, to keep free - we must go back to prison
• Newly-married woman gets strong in prison
• Someone at the match we will put into jail
• Black to have good seat in prison
• Make tea, put in half of said measure, and stir once
• British display equestrian skill, reaching old prison
• Wife quite possibly in prison
• The wife's OK and correct - being corrected in there