Man from Llandudno elated (4)
I believe the answer is:
noel
'man' is the definition.
'from llandudno elated' is the wordplay.
'from' says the answer is hidden in the clue.
'NOEL' is hidden within 'llandudno elated'.
(Other definitions for noel that I've seen before include "Season around the 25th December" , "Festive season" , "Festivity" , "Girl - boy - Christmas" , "Lone male name" .)