The Compact Linear Collider (CLIC) is a next generation electron-positron collider with access to the multi-TeV regime. Its staging capabilities and broadly scoped physics potential make this a compelling option for a future facility. The detector requirements for precision measurements drive an active R&D program. Current initiatives include hardware R&D for vertex pixel sensors, studies of tungsten absorbers in hadronic calorimeters, a comprehensive study of a cost-controlled option for an electromagnetic calorimeter, as well as a number of physics simulation studies. I will present an overview over the CLIC physics capabilities and over current activities in the CLIC Detector and Physics studies group.