Answer:

CHRISTMAS

AnswerCrossword Clue
CHRISTMASLate-year celebration
CHRISTMASPart 3 of quote
CHRISTMASOpening day
CHRISTMASPresent day?
CHRISTMASDecember holiday
CHRISTMASPresent time
CHRISTMASBirthday of a great teacher of brotherly love.
CHRISTMASSubject of a Berlin song.
CHRISTMASBritish island in the Pacific.
CHRISTMASThe Nativity.
CHRISTMASCertain tree
CHRISTMASKind of card
CHRISTMASEve or present
CHRISTMAS"The ... Song"
CHRISTMASIndian Ocean island
CHRISTMASFather ...
CHRISTMASQuery: Part 4
CHRISTMASWhen many homes have their lights on
CHRISTMASDay to play with new toys