You may hear a tidier girl (5)
I believe the answer is:
anita
'you may hear' is the definition.
I can't judge whether this defines the answer.
'a tidier girl' is the wordplay.
'tidier girl' becomes 'nita' (I am not sure about the 'tidier' bit.).
'a'+'nita'='ANITA'
Can you help me to learn more?
(Other definitions for anita that I've seen before include "Female" , "eg Dobson or Roddick" , "girl produced" , "-- Brookner, English novelist" , "lady" .)