12a Artist who painted The Last of England, or a poet and novelist books included Greenvoe and Magnus reflect his homeland Orkney [5]
13a Seville - crossed with a lemon for the hybrid bergamot, citrus tree with fruit used for marmalade, blossom for neroli oil and leaves/bark for petitgrain [6]
31a World's most populous country [5]
57a Author of 179 books including Perfect Stranger and Friends Forever, one of the best selling writers of all time [5]