A club grouping is a type of organization that is composed of members who share a common interest or purpose. The term 'club grouping' can refer to any type of organization, from a small local club to a large international organization. The crossword solution for the term 'club grouping' is 'IRONS, ' which refers to the tools used to shape and form metal objects. IRONS are often used in the construction of clubs, such as golf clubs, and thus the term 'IRONS' is associated with the concept of club grouping.