The O'Hara Estate is a fictional plantation in the novel 'Gone with the Wind' by Margaret Mitchell. The estate is owned by Scarlett O'Hara's father, Gerald O'Hara, and is located in Clayton County, Georgia. The estate is named after the O'Hara family, who are of Irish descent. The estate is the main setting for the novel and is home to Scarlett, her family, and their slaves. The estate is also the site of the famous scene in which Scarlett declares her love for Rhett Butler. The crossword solution for the term O'Hara Estate is 'TARA', which is the name of the plantation house on the estate.