The term 'KIND ONE' can be represented by two crossword solutions: ANGEL (5 letters) and DEAR (4 letters). An ANGEL is a spiritual being in many religions and mythologies, often depicted as a messenger of God. Angels are typically seen as benevolent and kind, so the term 'KIND ONE' could refer to an ANGEL. The word 'DEAR' is an adjective used to express fondness or endearment, so it could also be used to describe someone who is kind.