As the wife of Winston Churchill, Clementine Hozier was always in the spotlight, yet very few people today know her remarkable and often tragic life story.

Rohan McCullough is seeking to change all that though with this new one-woman play, penned by The Gathering Storm writer Hugh Whitmore, that premiered last year and is scheduled for a two-week run at the Edinburgh Fringe Festival in August.

"I think people find her interesting," she says.

"They know all about Winston but people are curious how somebody else copes with someone with such an enormous personality as him.

"People don't know that she had a tough life and I think they are surprised.

"We have our own opinions about somebody that it was easy but she had a very difficult beginning with her parents getting divorced and not knowing who her father was.

"She admitted herself she wasn't the best mother but that was because her life was Winston, she was very much in love with him.

"I went and saw Lady Soames, Clemmie's youngest daughter and writer of her biography, and ask her permission to do the show and she has been very supportive, giving me lots of letters between her parents to help. I couldn't have done it without her."

McCullough has achieved success with her one-woman shows before.

Her The Testament of Youth, based on Vera Brittain's celebrated book, won her the Scotsman drama award and she has performed The Tale of Beatrix Potter, who was her mother's cousin, all over the world.

"Sometimes I do wonder why I do it because I am so nervous beforehand still and sometimes have to be led out from the dressing room," she admits.

"But it is something I have always done.

"I started doing recitals so early and I am just used to being alone on stage.

"If I feel that somebody has got something from it, they have learnt something or I have given them something then that's very rewarding."

My Darling Clemmie, Croydon Clocktower, Katharine Street, June 25, 7.30pm, £7.50. Call 020 8253 1030 or visit croydonclocktower.org.uk.