SPACKLING
Scrabble letter values: S1P3A1C3K5L1I1N1G2 = 18
Definition
SPACKLING is the present participle of SPACKLE.
noun SPACKLE: powder (containing gypsum plaster and glue) that when mixed with water forms a plastic paste used to fill cracks and holes in plaster.
Synonyms of SPACKLE: spackling_compound