2003 Will Ferrell film (3)
I believe the answer is:
elf
'2003 will ferrell film' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for elf that I've seen before include "Fairy-like creature" , "Supernatural creature of folk tales" , "Small creature" , "Imaginary creature" , "Woodland sprite" .)