Adam Clarke on Proverbs 7:10

A woman with the attire of a harlot - It appears that sitting in some open place, and covering the face, or having a veil of a peculiar kind on, was the evidence of a harlot, Gen 38:14, Gen 38:15-19. No doubt, in Solomon's time, they had other distinctions. In all other countries, and in all times. the show of their countenance did testify against them; they declared their sin as Sodom; they hid it not. However, this does not seem to have been a mere prostitute; for she was, according to her own declaration, a married woman, and kept house, Pro 7:19, if her assertions relative to this were not falsehoods, and calculated the better to render him secure, and prevent the suspicion of endangering himself by cohabiting with a common woman; which I am rather inclined to think was the case, for she was subtle of heart.