No Angel is a term that has been used to describe someone who is not perfect or innocent. The term is often used to describe someone who is rebellious, mischievous, or even criminal. The crossword solution for the term No Angel is BRAT, which is an acronym for 'Behavioral Rules Are Too Strict'. This term is often used to describe someone who is unruly and disobedient, and is usually used in a derogatory manner.