Magical being (5)
I believe the answer is:
genie
'magical being' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for genie that I've seen before include "Bottled spirit?" , "means of wishfulfilment" , "One in Aladdin's lamp" , "Arabian spirit as in Aladdin's lamp" , "Magical being who carries out a person's wishes" .)