Related Clues:

• 'Porous, absorbent substance (6)'
• Porous mass found in the ocean
• Soft, absorbent material used for washing
• You might have just a bit of this with a muffin that's unkempt
• Just a scrap just for fun
• A muffin will do for the urchin after the scrap
• That sucker from the sea has gone after the p.s.
• Just for fun, see 7 down
• A bit of scrap, but just for fun
• Just a scrap of fun
• Does the sucker have a bad smell in it?
• The sort of innocent fun that may lead to a scrap
• With holes for washers
• What a sort of sucker might do on a sucker
• The sort of fun you'd get out of scrap