Complex sentence: Paul Foot, the journalist, had Chevenix-Trench as his Housemaster at Shrewsbury and, in adult life, Foot exposed the ritual beatings that Chevenix-Trench had given.
Split into simpler sentences: Paul Foot, the journalist, had Chevenix-Trench as his housemaster at Shrewsbury. In adult life, Foot exposed the ritual beatings that Chevenix-Trench had given.