Not cryptic, but a bit of an oddity in today's Graun "Weekend" crossword. It's in the form of a knowledge quiz, some of it pretty obscure.
French expression meaning "In the know". (1,2,4)
The solution in the ipad app insisted on the grave accent over the first letter, otherwise it said it was wrong. That's rather fussy of it, and also inaccurate, as the app defaults to capitals and accents are optional extras when you are using capitals.