Fitting, suitable (3)
I believe the answer is:
apt
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">fitting</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(both mean appropriate)</span><br/ ><br/ >'<span class="explanation-format__original">suitable</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(apt means appropriate or fitting)</span><br/ ><br/ ></span>
(Other definitions for apt that I've seen before include "Apposite, appropriate" , "Having a tendency" , "Ready to learn" , "Suitable; quick to learn" , "suitable for the circumstances" .)