The term REAL POSER is a phrase used to describe a difficult problem or situation. The crossword solutions for this term are ENIGMA (6 letters), BEAST (5 letters) and TOUGHIE (7 letters). An ENIGMA is a puzzle or riddle that is difficult to solve, while a BEAST is a wild animal or creature that is often seen as dangerous or difficult to control. A TOUGHIE is a person or thing that is hard to deal with or overcome. All three of these words can be used to describe a real poser.