Crossword Clue:

MYXOMA a tumour composed of mucous tissue

AnswerCrossword Clue
TENETSWhat a creed is composed of
ALLUVIALComposed of sand from a flowing river.
MESONParticle composed of a quark and an antiquark
LOVE"... is composed of a single soul inhabiting two bodies": Aristotle
WIKIPEDIAIts symbol is a globe composed of jigsaw puzzle pieces
ENYASinger who co-composed a song in Elvish for "The Lord of the Rings"