To Add Polish or Shine to Something
Puzzle 2 of Winter Wonderland Piece of Cake Pack
Question is: To Add Polish or Shine to Something
and the answer is: VARNISH
Word Meaning:
VARNISH — A clear or translucent liquid coating composed of resin dissolved in a solvent, which dries by evaporation to form a hard, protective, and typically glossy finish.
Definitions from Wiktionary.