Metrical (8)
I believe the answer is:
rhythmic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">metrical</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rhythmic that I've seen before include "Recurring with measured regularity" , "Incorporating a musical beat" , "Regularly occurring" , "Having strong or regular beat as in music" , "Relating to musical pulse" .)