The Pause, or Segmented Clean is performed identically to the Clean, with the exception that there are one or more pauses included during the pull. Begin the lift as you would a clean, and when you reach the first prescribed pause height, hold that position for the prescribed time (usually 2-3 seconds). After the pause, continue the movement to the next pause position if there is one. After the last pause position, complete the clean as usual.
The primary purpose of the segment clean is to reinforce certain positions during the pull and strengthen the athlete to improve their ability to achieve those positions during the lift.