AMHERST, Mass. - Stephen Clingman, chair of the English department at the University of Massachusetts, has won South Africa''s premier prize for non-fiction, the Sunday Times Alan Paton Award. The award, the South African equivalent of a Pulitzer Prize, was given to Clingman for his biography, "Bram Fischer: Afrikaner Revolutionary" (University of Massachusetts Press). Clingman was given the prize together with Antjie Krog, author of "Country of My Skull," marking the first time the award has been granted jointly. The announcement was made at a banquet in Johannesburg on June 18. Clingman was flown to South Africa especially for the event.