One of the duties of theatre is to explore lesser-known work by canonical dramatists and two British theatres have just admirably fulfilled this obligation. Welsh writer-actor Emlyn Williams (1905-87) wrote two popular hits – the thriller Night Must Fall and the melodrama The Corn is Green – but unexpectedly challenged the social and sexual values of the commercial theatre of his time with his 1950 play Accolade.The play’s six scenes take place in the well-staffed Regent’s Park home of Will Trenting, a novelist who has already won the Nobel Prize in Literature, beginning on the morning that he adds to this honour a knighthood. But it’s soon clear, from phone calls to which his secretary listens worriedly, that the author has a secret thought unsuitable for a