COOK and stir onions, celery and bacon in medium saucepan on medium heat 5 min. or until vegetables are crisp-tender. Add potatoes and water; bring to boil. Cook 15 min. or until potatoes are tender.
MICROWAVE milk and cream cheese in small microwaveable bowl on HIGH 1-1/2 min. or until milk is heated through. Whisk until cream cheese is completely melted and mixture is well blended. Add to potato mixture; stir.
STIR in clams; cook 2 min. or until heated through, stirring frequently. (Do not boil.)
