Pile of Sand on a Beach Left by a Lugworm
Puzzle 14 of Thanksgiving Piece of Cake Pack
Question is: Pile of Sand on a Beach Left by a Lugworm
and the answer is: WORMCAST
Word Meaning:
WORMCAST — A small pile of sand or soil, the end product of the breakdown of organic matter by an earthworm.
Definitions from Wiktionary.