The crossword itself has a number of shaded squares you have to re-arrange to spell out a two word title of a television programme associated with Nigella Lawson, the highlighted letters are : remufeoremvrD ( not s ) ..
Spot on Cruciverbals, thankyou. I had put duress!, but what is 4d then begining with s ? - channel brightness due to heavenly access - daylight fitted in with everything else ...