The term 'Soup Partner' can be broken down into two crossword solutions: Saltines (8 letters) and SALAD (5 letters). Saltines are a type of cracker made from flour, water, and salt. They are usually served with soup as a side dish. SALAD is a dish made from raw vegetables, often served as an accompaniment to soup. Both Saltines and SALAD are popular accompaniments to soup, making them the perfect 'Soup Partners'.