Super-CLASS is a deep wide-area survey designed to detect the effects of weak lensing in a super-cluster region covering 1.75 square degrees where there are 5 known clusters. Using a sophisticated mosaicing strategy we expect to achieve an r.m.s of 4 µJy in order to reach a source density ~1 sq. arcmin. Using standard, and new techniques involving polarization, these data will allow us to probe the dark matter distribution in the region and, by defining a grid of rotation measures, the magnetic field structure. We will propose a program of multi-wavelength observations in order to probe the star-formation and AGN activity in the ~ 104 sources we expect to detect which will complement the narrower, but deeper e-MERGE survey. The program will involve the development of the polarization, mosaicing and phase referencing capabilities of e-MERLIN and the results will yield information which will guide the design of surveys with the SKA.