From the creators of''Little Pea'' and''Little Hoot'' comes this tidy tale of a decidedly different pig. Little Oink is a neat little fellow. Clean, clean, clean, that''s all he wants to do. But Mama and Papa won''t have it! They say in order to be a proper pig, he has to learn to make a proper mess. "Don''t come out until your room is a pigsty," says Papa Pig. "I won''t have any child of mine going out looking so neat and clean. It''s just not acceptable," says Mama Pig. Readers who hate to clean up will love this humorous twist on a universal dilemma.