2. Cult 1960's location for the incarceration of No.6 (10)
25. Birthplace of Sam Sheffield's spouse (9)
40. Hillary's statue & a camera obscura here (7)
If you look at the thread about this quiz on the Fundraising Quizzes website, you will see explanation for the two errors (2 & 25) posted by the setter. She apologises most profusely for her mistakes.