Posh British school (4)
I believe the answer is:
eton
(Other definitions for eton that I've seen before include "old school" , "Note sent up to English public school" , "learn here?" , "School; jacket type" , "Posh college" .)
I believe the answer is:
eton
(Other definitions for eton that I've seen before include "old school" , "Note sent up to English public school" , "learn here?" , "School; jacket type" , "Posh college" .)