In a large skillet, fry the bacon, onion, celery, and Daikon pieces in a pan until bacon is crisp. Drain juice from clams over the onions, celery, and Daikon. Add chicken broth to cover, and cook over medium heat until veggies are tender.
Meanwhile, in a large, heavy saucepan, add in the cream cheese, stir constantly until thick and smooth. Stir in vegetables and clam juice. Heat through, but do not boil. Stir in clams just before serving. If they cook too much they get tough. When clams are heated through, stir in vinegar, and season with salt and pepper.