The term 'boardroom plot' refers to a situation in which a group of people, usually corporate executives, plan and carry out a strategy to gain control of a company. The term is derived from the boardroom, where these meetings are often held. In this crossword, the solution for the term 'boardroom plot' is GRAPH, which can refer to a visual representation of data or information. This could be used to illustrate the strategy that the group of people have planned out.