Possible Clues:

• Absorbs, as gravy
• Absorbs
• Absorbs, as a spill
• Absorbs, as gravy on a plate
• Absorbs with bread, as gravy
• Gets the last bit of, as gravy
• Cleans with a paper towel, as a spill
• Uses a sponge on, say
• Absorbs, in a way
• Gets the last of, as gravy