Answer: innards

AnswerCrossword Clue
INNARDSGuts
INNARDSOrgans and such
INNARDSMachine makeup, informally
INNARDSWorking parts
INNARDSViscera
INNARDSInsides: slang.
INNARDSInterior parts of engines
INNARDSCentral parts
INNARDSOrgans, guts and such
INNARDSHidden body parts
innardsthe internal organs of a human being or animal
innardsthe internal parts
innardsthe internal organs
innardsscera