She turns to give a hail (3)
I believe the answer is:
eva
'she' is the definition.
'turns to give a hail' is the wordplay.
'turns' says the letters should be written in reverse.
'to give' is a charade indicator (letters next to each other).
'hail' becomes 've' (I can't justify this - if you can you should give a lot more credence to this answer).
'a'+'ve' is 'ave'.
'ave' backwards is 'EVA'.
Can you help me to learn more?
(Other definitions for eva that I've seen before include "Maria -- Duarte De Peron" , "Braun or Peron, say" , "Little --, US pop singer" , "Dame - - Turner, 15" , "girl appears" .)