Combine the flour, 1 teaspoon salt and 1/2 teaspoon pepper in a large resealable plastic bag. Add beef, a few pieces at a time, and shake to coat.
Brown beef in oil in batches in a large skillet. Transfer meat and drippings to a 6-qt slow cooker. Add the potatoes, carrots, onion and celery. Combine the broth, juice, Worcestershire sauce, garlic, bay leaves, thyme, basil, paprika and remaining salt and pepper; pour over top.
Cover and cook on low for 8-10 hours or until meat and vegetables are tender. Combine cornstarch and water until smooth; stir into stew. Cover and cook 30 minutes longer or until thickened. Discard bay leaves.