Rides a bike (6)
I believe the answer is:
cycles
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rides 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 cycles that I've seen before include "Recurring rounds of events" , "Recurrent series of events" , "Sequence of songs" , "Complete sets or series of songs or poems" , "Recurring sets of changes; groups of songs" .)