Entwistle is Principal Lecturer in English at the University of Glamorgan. She co-authored A History of Twentieth Century British Women's Poetry (Cambridge, 2005) with Jane Dowson, now the authoritative text in its field. In the last 12 years she has published widely on mid-century and contemporary Anglo-American poetics, latterly concentrating mainly on those working in or identifying with the devolved regions of the United Kingdom, and frequently on women. She has contributed scholarly essays to A Cambridge Companion to British and Irish Women's Poetry (ed. Dowson 2011), A Cambridge History of English Poetry, The Edinburgh Companion to Scottish Literature and A Cambridge Companion to Sylvia Plath. She is currently working on a study of Gwyneth Lewis for the University of Wales Press (Writers in Wales ser.) Se is also the author of In These Stones: Women writing poetry in and out of Wales (Seren forthcoming), the first major study of the ways in which women in Wales have chosen to construct their shared cultural context in poetry.