The term ONE IN REVOLT can be summarized as a single individual who is in a state of rebellion. This could refer to a person who is actively protesting against an oppressive government or system, or someone who is refusing to conform to societal norms. It could also refer to a person who is standing up for their beliefs and rights in the face of opposition. The crossword solution for this term is REBEL, which is a fitting description for someone who is in a state of revolt.