Wary, careful (5)
I believe the answer is:
chary
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">wary</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">careful</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for chary that I've seen before include "Cautious, wary" , "Careful" , "Cautiously reluctant" , "cagy" , "Circumspect" .)