The term BEST PART can be broken down into five crossword solutions: ELITE (5 letters), CREAM (5 letters), LEAD (4 letters), HIGHLIGHT (9 letters), and MOST (4 letters), MARROW (6 letters). ELITE is an adjective meaning of the highest quality or rank, often referring to a select group of people. CREAM is a noun meaning the thick yellowish-white fatty part of milk which rises to the surface when the liquid is allowed to stand. LEAD is a verb meaning to guide or direct on a way especially by going in advance. HIGHLIGHT is a verb meaning to emphasize or bring attention to something. MOST is an adverb meaning to the highest degree or extent. MARROW is a noun meaning the soft fatty tissue that fills the cavities of bones. Together, these words can be interpreted as the best part being the highest quality, the CREAM of the crop, leading the way, emphasizing the MOST, and having the deepest impact.