The term 'Poses a Poser' is a phrase used to describe a situation or question that is difficult to answer. It is often used in the context of a riddle or puzzle, where the person posing the question is expecting a difficult answer. The crossword solutions for this term are 'ASKS', which is a four-letter verb meaning to put forward a question or request. Therefore, the phrase 'Poses a Poser' can be interpreted as someone asking a difficult question.