While at university, she was very active in the drama society, playing leading roles in A Midsummer Night's Dream, Private Lives and Buried Child, among many others, and directed the 1952 play about Joan of Arc L'Alouette (The Lark) by Jean Anouilh.
She also lent her voice to the BBC Northern Ireland animated comedy series The Folks on the Hill.
More recently she took part in Scott Mills The Musical in her role of "Posh Radio 4 Lady".
The idea led to a book, A Brief History of Tim: The World Minus One Letter: Clugston reads the latest creations on Broadcasting House.
[9][10] Clugston chairs the BBC Radio 4 series Gardeners' Question Time, having replaced Eric Robson in May 2019.