She has a line in licentious art (4)
I believe the answer is:
rita
'she' is the definition.
'a line in licentious art' is the wordplay.
I cannot really understand how this works, but
'a' is found in the answer.
The remaining letters 'rit' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'has' is the link.
Can you help me to learn more?
(Other definitions for rita that I've seen before include "-- Hayworth, US film actress" , "The Beatles' lovely girl" , "...Hayworth, ...Coolidge, ... ''Educating ...''" , "subject of education" , "Educating - - , film" .)