Possible Clues:

• Yob, ruffian
• Lout gives call to excite attention in gaol, rioting
• Lawless type taken from house, reformed in gaol
• Ruffian, noisy troublemaker
• Half-hour in gaol could transform him!
• Go in halo to sort out ruffian
• Undesirable
• A young ruffian
• A thug in school, I gang-up
• 24 natives pick up Soldier John, a ruffian