Ned got trained by her, somehow (4)
I believe the answer is:
rita
But I can't explain it at all! Could you help me understand?
(Other definitions for rita that I've seen before include "Educating - - , film" , "The Beatles' lovely girl" , "-- Hayworth, US film actress" , "subject of education" , "...Hayworth, ...Coolidge, ... ''Educating ...''" .)