Clear enunciation (9)
I believe the answer is:
elocution
'clear enunciation' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for elocution that I've seen before include "The skill of clear and expressive speech" , "Art of public speaking" , "The art of speaking expressively and well" , "Art of clear speech" , "Art of effective speaking" .)