Erring (6)
I believe the answer is:
errant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">erring</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for errant that I've seen before include "Wandering (as a knight?)" , "Nomadic" , "Wrong" , "Sinful" , "Behaving badly" .)