The term 'deep end' is a phrase used to describe a situation that is difficult or dangerous. It can also refer to the deeper end of a swimming pool, where the water is usually deeper than in the shallow end. The crossword solutions for the term 'deep end' are SET (3 letters), BASS (4 letters), and PEE (3 letters). SET refers to a group of things that have been arranged or put together, BASS is a type of fish found in deep waters, and PEE is a slang term for urinating.