She may turn out to be Eastern alien (6)
I believe the answer is:
'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'.
'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" .)