Drunkard rings Kent girl - she may be accompanied (7)
I believe the answer is:
soloist
'girl she may be accompanied' is the definition.
I can't judge whether this definition defines the answer.
'drunkard rings kent' is the wordplay.
'drunkard' becomes 'sot' (synonyms).
'rings' is an insertion indicator.
'kent' becomes 'lois' (I am not sure about this - if you are sure you should believe this answer much more).
'sot' enclosing 'lois' is 'SOLOIST'.
Can you help me to learn more?
(Other definitions for soloist that I've seen before include "this one's on his own" , "Lone performer" , "Only one playing" , "Individual performer" , "Main singer" .)