Elf or fairy (6)
I believe the answer is:
sprite
I believe this clue is a double definition.
'elf' is the first definition.
(I've seen this in another clue)
'fairy' is the second definition.
(synonyms)
(Other definitions for sprite that I've seen before include "Nimble elf-like creature - icon in computer game" , "Naiad" , "Elf, fairy" , "A fairy or goblin" , "Stripe on a fairy" .)