Solutions do not scatter light because the individual molecules or ions are too small to effectively scatter light. These are colloids which prefer an aqueous environment. Examples are proteins which fold such that polar groups lie on the outside in contact with the water, and non-polar groups are on the inner part, away from the water. Typically a hydrophobic molecule will not dissolve in any way in water, but rather separate into two layers. However, the presence of emulsifiers can produce a colloid.
Emulsifiers are agents which coat the hydrophobic particle.
Often we want to clear clothes which contain non-polar stains, such as oils and grease. Water is a poor solvent for these solutes, but soaps and detergents act as emulsifiers, Soaps and detergents have long non-polar sections and a small polar section.