Related Clues:

• Stuff settled at the bottom of a drink
• Red Reg slurps contains sediment
• Every other bit extracted, darker gas remains
• Wine barrel residue
• Dross, sediment
• Wine barrel remnants
• What's left at the bottom of the glass?
• Coffee grounds, or similar residue
• Like the worst sort of loveless greeting
• Small amounts of residue
• Barrel sediments
• (Eg, coffee) residue
• Liquid remnants
• The worst of the worst?
• Liquid remains unused for three long days finally