A Persian fairy some found superior (4)
I believe the answer is:
peri
'a persian fairy' is the definition.
(I've seen this in another clue)
'found superior' is the wordplay.
'found' indicates the answer is hidden within the clue.
'PERI' is hidden within 'superior'.
'some' acts as a link.
(Other definitions for peri that I've seen before include "Beautiful fairy" , "Fairy of Persian folklore" , "Persian fairy or genie" , "Fairy queen" , "Supernatural being in Persian folklore" .)