Crossword Genius

Less drunk, retrospectively screen missing diamonds for bishop (7)

Ross

I believe the answer is:

soberer

I'm a little stuck... Click here to teach me more about this clue!

'less drunk' is the definition.
(I've seen this in another clue)

I can't explain the rest of the clue.

Can you help me to learn more?

I've seen this clue in The Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.