She makes herself heard at Christmas (5)
I believe the answer is:
carol
'she' is the definition.
(woman's name)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for carol that I've seen before include "sing happily" , "Joyful song - woman's name" , "Song celebrating the birth of Jesus" , "Christmas ditty" , "Girl" .)