Accomplished director playing character in Romeo and Juliet (4)
I believe the answer is:
done
'accomplished' is the definition.
(to do something is to accomplish it)
'director playing character in romeo and juliet' is the wordplay.
'director' becomes 'd' (abbreviation eg in film reviews).
'playing' becomes 'on' (on can mean playing or performing).
'character in' indicates the central letters (I've seen 'characters in' mean this).
'romeo and juliet' becomes 'shakespeareplay' (I've seen this in another clue).
The middle of 'shakespeareplay' is 'e'.
'd'+'on'+'e'='DONE'
(Other definitions for done that I've seen before include "Complete; finished" , "that may be said to seal a deal" , "Performed" , "Finished or ended" , "agreed" .)