Answer: fouling

AnswerCrossword Clue
foulingstormy
foulingto disgrace
foulingencrusted deposit, esp. on a submerged object, as the hull of a ship
foulinga deposit or crust
foulingto clog or obstruct
foulingentangled
foulingto make foul
foulingclogged
foulingcontrary to the rules of a game
foulingto commit a foul
foulingviolation of the rules of a game
foulingto entangle
foulinggrossly offensive
foulingto become foul
foulingfilthy; dirty