Hey! For plaster wall coating, are you thinking of spackle? Or maybe joint compound/drywall mud? Those words always mix me up, tbh. It really depends on the context, but those are the first ones that come to mind. Hope that helps with your puzzle, good luck with it!
Stucco is a type of plaster used as a decorative coating for walls and ceilings, especially on exterior surfaces. Crossword puzzles often use it because it’s a common 6-letter answer for plaster or wall coating clues.
