Whimsical (3)
I believe the answer is:
fey
'whimsical' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fey that I've seen before include "Clairvoyant or doomed in Scotland" , "Clairvoyant, visionary" , "Strangely fanciful or clairvoyant" , "Elfin or slightly touched" , "Having strange other-world charm" .)