Ride a bike (5)
I believe the answer is:
cycle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ride a bike</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 cycle that I've seen before include "Travel (on wheels)" , "Rotation" , "Aeon" , "Come round" , "Recurring series of changes" .)