Hummus can be clean..or not, depending on how its made. Store-bought hummus can have preservatives and additives you don't need. Homemade is the best. Tahini is not 'unclean,' but it is high in fat (but also nutrients). "Clean" doesn't mean "low fat," but rather healthful, IMO.
I've made dips with garbanzo beans similar to hummus, but a bit different. In a food processor, blend garbanzos, onions, and poultry seasoning. Add seasonings to taste. You can play with this basic recipe to make different versions that please your palate.
Another option (though not low fat): soak 1 cup raw cashews in water to cover for 4-6 hours. Rinse and drain, then blend up with about 1 Tbsp lemon juice, some onion powder and garlic powder. This makes the 'sour cream' base. Add chopped herbs to taste (dill, basil and chives or green onions are a good combo).
You can also try the cashew dip using white beans instead of the cashews (rinse and drain a can of white beans and process until smooth).