Carol Ann Duffy is one of the 10 poets shortlisted for the pounds 5,000 T S Eliot prize. Each of the poets will be featured in The Daily Poem this week and next. The winner will be announced next January, after an Oscars-style process in which the 1,850 members of the Poetry Book Society will each have a vote. She was born in Glasgow in 1955. She has lived in Staffordshire, Liverpool and in London, where she works as a freelance writer. This poem appears in Mean Time published by Anvil at pounds 6.95.