
1) UK public school 2) Alma mater for David Cameron 3) Alma mater of Prince William 4) Alternative to Winchester 5) As opposed to Windsor 6) Author goes to college 7) Backward note 8) Berkshire boarding school 9) Berkshire college 10) Berkshire college town 11) Berkshire school 12) Berkshire town 13) Billed cap
Found on
https://www.crosswordclues.com/clue/eton

town (parish), Windsor and Maidenhead unitary authority, historic county of Buckinghamshire, England, across the River Thames from Windsor. It is ...
Found on
http://www.britannica.com/eb/a-z/e/49

a town in Berkshire, in S England, on the Thames River, W of London: the site of Eton College. 3954.
Found on
https://www.infoplease.com/dictionary/eton
No exact match found.