The term 'Cause of a Red Face' can be summarized by three crossword solutions: SHAME (5 letters), IRE (3 letters), and ROUGE (5 letters). SHAME is an emotion that is felt when one has done something wrong or embarrassing. IRE is another word for anger, which can cause a person to blush. ROUGE is a type of makeup that is used to give the cheeks a rosy hue. All three of these words can be used to describe the cause of a red face.