'Cloth' is an uncountable noun and it means fabric, or woven material, such as cotton or linen. People use cloth to make clothes. A cloth (countable) is a piece of material. You use a tablecloth to cover the table. You might use a facecloth to wash your face.
'Clothes' is a plural noun, used to refer to the garments that you wear. Trousers, shirts, dresses and socks are all clothes.
'Clothing' is an uncountable noun that has the same meaning as 'clothes', but it is used in more general and less personal contexts, such as business and industry. For example, you might say that someone works 'in the clothing industry', or that people in a disaster zone urgently need medicine, food and clothing.