Skilful, dexterous (6)
I believe the answer is:
adroit
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">skilful</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(adroit can mean skilful or masterful)</span><br/ ><br/ >'<span class="explanation-format__original">dexterous</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for adroit that I've seen before include "Skilful, expert" , "Canny" , "resourceful" , "Quick and clever in action or thought" , "Quick and deft" .)