Soft, Fatty Substance Inside Bones
This page is the CodyCross answer for the clue below from Performing Arts, Group 889, Puzzle 4 (Tightrope Walking).
Question is: Soft, Fatty Substance Inside Bones
and the answer is: MARROW
Word Meaning:
MARROW — (uncountable) The substance inside bones which produces blood cells.
Definitions from Wiktionary.