Free-Swimming, Gelatinous Organisms That Can Sting
Puzzle 13 of Love Songs Pack
Question is: Free-Swimming, Gelatinous Organisms That Can Sting
and the answer is: JELLYFISH
Word Meaning:
JELLYFISH — An almost transparent aquatic animal; any one of the acalephs, especially one of the larger species, having a jellylike appearance.
Definitions from Wiktionary.