Expert, accomplished (7)
I believe the answer is:
skilful
I believe this is a double definition.
'expert' is the first definition.
(I know that expert can be written as skilful)
'accomplished' is the second definition.
(synonyms)
(Other definitions for skilful that I've seen before include "exhibiting crafts" , "Adroit" , "Adept, expert" , "7 [CLEVER]" , "Very adept and proficient" .)