Recurrent (8)
I believe the answer is:
periodic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">recurrent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for periodic that I've seen before include "every now and then" , "Cyclical" , "Occasional" , "Intermittent" , "At fixed intervals" .)