Answer: sooty

AnswerCrossword Clue
SOOTYLike a sweep
SOOTYLike Santa's outfit on December 26
sootycovered, blackened, or smirched with soot
sootycovered with soot
sootyof a black, blackish, or dusky color
sootyconsisting of or resembling soot
SOOTYLike Bert, for much of "Mary Poppins"
SOOTYLike Santa's suit on Christmas Day
SOOTYLike Santa after a delivery
SOOTYLike a sweep's clothes
SOOTYDirty, as a chimney
SOOTYLike Santa after work
SOOTYLike some terns
SOOTYLike many old fireplaces
SOOTYLike Santa's suit on December 26
SOOTYLike 26-Down's suit on Dec. 26
SOOTYCoated with carbon
SOOTYLike Santa's suit
SOOTYNeeding sweeping
SOOTYWhat Santa gets?
SOOTYSoiled, in a way
SOOTYBlack.
SOOTYGrimed.
SOOTYBegrimed.
SOOTYCovered with grime.
SOOTYDescribing urban air.
SOOTYSmudged
SOOTYLike a chimney flue
SOOTYBegrimed
SOOTYFuliginous
SOOTYWhat Santa gets for climbing down the chimney?
SOOTYLike a flue
SOOTYBlackish
SOOTYLike a sweep's uniform
SOOTYLike Santa on Christmas Eve?
SOOTYIn need of a sweep
SOOTYBlackened
SOOTYLike Santa's boots
SOOTYLike Santa's suit after going through the chimney
SOOTYLike used fire irons