Private Eye Crossword - 28Ac

[watersa]

privateye cyclops crossword 737
28 ac - can anyone help with answer to "Saudi aristocratic holding John Major, Private Eye style"
i have d-a-i-t which cld be dualist or diarist but i cant see why. help pls!

[1ozzy]

Diarist
Hidden in saudi aristocrat

[watersa]

thank you so much!