Possible Clues:

• Deceptive individual
• Jack in a deck of cards
• Rat pack member?
• Scoundrel finds grand place for the flock
• Scoundrel — card
• King leading section of church? It's an honour
• Dishonest person
• Originally, a male servant
• Yet he may be a diamond geezer
• Old sinner? There's one, they say, in every church