Miss Marple is a fictional character created by Agatha Christie. She is an elderly spinster who solves mysteries using her sharp wit and keen observation skills. The term 'Miss Marple Discovery' refers to her ability to uncover the truth behind a crime. The crossword solutions for this term are 'CLUE' and 'BODY', which refer to the evidence that Miss Marple uses to solve the mystery. Clues are pieces of information that help her to identify the perpetrator, while the BODY is the physical evidence that she finds at the scene of the crime.