The document outlines the agenda and terms of reference for Cluster 2 on future UK spectrum access and use. The cluster will develop an understanding of spectrum users, review access mechanisms, assess the balance and fit for purpose of access, and make recommendations. It will focus on types of licensing and how spectrum could be used, considering factors like technology, harmonization, location, and time. Three workshops are planned to discuss licensed shared access, unlicensed use bands, and different access mechanisms.