Organic Matter Being Recycled, Usually a Heap
This page is the CodyCross answer for the clue below from Under the sea, Group 29, Puzzle 4.
Question is: Organic Matter Being Recycled, Usually a Heap
and the answer is: COMPOST
Word Meaning:
COMPOST — The decayed remains of organic matter that has rotted into a natural fertilizer.
Definitions from Wiktionary.