Possible Clues:

• Wife and nipper, perhaps, awfully brash youngster
• That youngster, a thief with a camera maybe?
• Cheeky youngster, one taking picture through
• Cheeky youngster, one who flogs fish
• Nonentity setting bad-tempered dog on thief?
• One with cat and fish is a cheeky upstart
• Jumped-up youngster who photographs person with cat?
• One stealing fish is a cheeky youngster
• One stirring up cream, say, added to fish a little squirt!
• Mischievous child, one using cane on swimmer?