breaking down of living matter

DECOMPOSITION
WordClue
COOKprepares food for a living
DEADNight of the Living ...
DIRTunclean matter
FELLcutting-down of timber
FOAMform of matter
MASSMatter, material
ROOMdining or living
BEINGliving creature
NIGHT... of the Living Dead
LOUNGEliving room
PARLORliving-room
ZOMBIEliving dead
BIOLOGYThe study of all life or living matter
DRIFTERvagrant, down-and-out
VAGRANTdown-and-out, tramp
CREATUREliving being
ATTRITIONWearing or grinding down by friction
BIOLOGISTscientist studying living organisms
SUBSTANCEPhysical matter
CONNOISSEURsubject-matter expert
WRECKERbreaker, ruiner
MOLEbreakwater, dike