She may turn out to be Eastern alien (6)
I believe the answer is:
elaine
'she may' is the definition.
'elaine' can be an answer for 'may' (I've seen this in another clue). I am not certain of the 'she' bit.
'turn out to be eastern alien' is the wordplay.
'turn out' indicates anagramming the letters.
'to be eastern' becomes 'e'.
'e'+'alien'='ealien'
'ealien' with letters rearranged gives 'ELAINE'.
Can you help me to learn more?
(Other definitions for elaine that I've seen before include "Girl" , "Mother of sir Galahad" , "-- Paige, singer" , ""The lily maid of Astolat"" , "Woman" .)