beat the clock

:  to strike repeatedly:

:  to hit repeatedly so as to inflict pain

:  to walk on :  tread

:  a single stroke or blow especially in a series

:  pulsation, tick

:  a sound produced by or as if by beating (see ¹beat)

:  being in a state of exhaustion :  exhausted

:  sapped of resolution or morale

:  of, relating to, or being beatniks

:  beatnik

:  a device other than a watch for indicating or measuring time commonly by means of hands moving on a dial

:  any periodic system by which time is measured

:  a registering device usually with a dial

:  to time with a stopwatch or by an electric timing device

:  to be timed at

:  to register on a mechanical recording device

:  an ornamental figure on the ankle or side of a stocking or sock