The term ONE WITH AFFECTATIONS can be summarized by two crossword solutions: POSEUR (6 letters) and MANNERIST (9 letters). A POSEUR is someone who pretends to be something they are not, often in order to impress others. They may adopt certain mannerisms or affectations in order to appear more sophisticated or stylish. A mannerist is someone who follows a particular style or manner of behavior, often in an exaggerated way. Both terms refer to people who put on a show in order to make a good impression.