Actress Gilpin (4)
I believe the answer is:
peri
'actress gilpin' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for peri that I've seen before include "Fairy of Persian myth" , "Prefix denoting 'around'" , "Spirit of folklore" , "Type of disembodied spirit or graceful young girl" , "Fairy could be ripe" .)