Possible Clues:

• Varlet
• Spanky, for one
• One who is playfully mischievous
• The rogue wants smashed-up cars - a number
• Artist leads malicious gossip and disappears, the knave
• Changing sides, Indian sailor is seen as villain
• The sort of Lascar that's a scoundrel
• Reprobate
• Cheeky person, scamp
• What a rogue that Lascar is!