Yuletide wise men (4)
I believe the answer is:
magi
'yuletide wise men' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for magi that I've seen before include "present suppliers" , "The three Wise Men of Bethlehem" , "Travellers in NT" , "The Three Kings" , "Caspar, Melchior and Balthazar" .)