UNWELCOME REFLECTION is a phrase that describes an unpleasant thought or feeling that is brought up in one's mind. The term can be used to describe a situation in which someone is reminded of something they would rather not think about. In this crossword, the solution for the clue GLARE (5 letters) is related to this phrase, as it is a word that describes an intense and hostile look that can be used to express disapproval or displeasure.