Street Scene is a term that can refer to a variety of different things. In the context of this crossword, it is referring to two separate words: RIOT and SKISLOPE. RIOT is a four-letter word that refers to a violent disturbance of the peace by a crowd. SKISLOPE is an eight-letter word that refers to a downhill ski course or trail. Together, these two words form the term Street Scene, which can refer to a chaotic or tumultuous environment.