Possible Clues:

• Word in a New Year's song title
• Old, in Orkney
• Word sung every 1/1
• Second word of a January song
• Word in a seasonal song
• Seasonal word 1 (added to 17-Across)
• First word in a holiday song title
• First word of a New Year's song title
• Title word in the first song you sang this year
• Eric --, Scottish painter of Aberdeen and its surrounding landscapes