Cryptic crossword No 3,398

Special Instructions: NOT INTENDED TO BE SOLVED, JUST UPLOADING SOME OLD XWORDS SINCE I'M NEW HERE. Xmas Xword 2024 (Dec 24, 2024) – The first letters of the non-thematic clues reveal a festive message. Clues aren't the best (partly due to the acronym and 'early setter syndrome').