Pedometer unit (4)
I believe the answer is:
step
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pedometer unit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for step that I've seen before include "Prefix meaning related by remarriage" , "Pace - part of a procedure" , "Footprint" , "Stair" , "Rung, dance movement" .)