Answer: pendulum

AnswerCrossword Clue
PENDULUMPoe torture device
PENDULUMGrandfather clock feature
PENDULUMClock part.
PENDULUM"The Pit and the ...," Poe's famous horror story.
PENDULUMClock feature.
PENDULUMPart of a grandfather clock
PENDULUMTick-tock maker
PENDULUMAid in hypnotism
pendulumA weight hung from a fixed point so that it can swing freely backward and forward, esp. a rod with a weight at the end that regulates the mechanism of a clock
pendulumUsed to refer to the tendency of a situation or state of affairs to oscillate regularly between one extreme and another
penduluma type of free swinging body