Possible Clues:

• Discard
• Refuse, garbage, rubbish
• That's a stew down the drain
• Spend thoughtlessly or use inefficiently
• Refuse to be followed by 3, say?
• Watermelon rind, e.g.
• Unnecessary cost
• Devastate
• Gets a wheelie-bin to gather this up?
• Writer of poems (he includes German one)