Possible Clues:

• For a sucker, it sounds as if his money will go with a bang
• Sucker picking up ball in middle of game
• Lie about one's dad being sweet!
• Prop for a Munchkin guild member
• Woman seeing children safely across the road
• Sweet noted for 5?
• For a sucker money goes the way of the weasel, by the sound of it
• Eponymous Southern sucker
• Tablet in water brought up: children love it
• Sweetie getting a licking