Clue: Restaurateur on TV, judging pie Luther baked (4,5)
Answer: PRUE LEITH
Explanation: Definition: Restaurateur on TV, judging
An anagram ('baked') of 'pie Luther'. Fortunately an easy anagram, as I had not come across the lady, who, among other acheivements, has been a judge for *The Great British Bake-off* (at least I know that name).