The term 'AMUSING Lark' can be broken down into two crossword solutions: HOOT (4 letters) and AMUSING (8 letters). The word 'HOOT' is a verb that means to make a loud, distinctive sound, usually in the form of a laugh or cry. It is often used to express joy or amusement. The word 'AMUSING' is an adjective that means entertaining, funny, or enjoyable. Together, the two words form the phrase 'AMUSING Lark, ' which is used to describe something that is fun and entertaining.