Skilled, accomplished (6)
I believe the answer is:
expert
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">skilled</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">accomplished</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for expert that I've seen before include "At the right moment" , "Adept" , "Skilled workman or specialist" , "Specialist, pundit" , "Proficient and skilful" .)