Yuletide choir provide encore (4)
I believe the answer is:
echo
'encore' is the definition.
(thesaurus)
'yuletide choir provide' is the wordplay.
'provide' says the answer is hidden in the clue.
'ECHO' is hidden in the letters of 'yuletide choir'.
(Other definitions for echo that I've seen before include "Mimic" , "Nymph; E (radio comms.)" , "Reminder" , "Reverberation of sound" , "ring" .)