Expected to be outside the King's Head with a nobleman (3)

I believe the answer is:

due

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

'expected' is the definition.
(similar in meaning)

I can't explain the rest of the clue.

(Other definitions for due that I've seen before include "Appropriate - fee - requiring payment" , "Appropriate - fee - now owing" , "Expected; appropriate" , "Ripe for payment or arrival" , "Scheduled to arrive" .)

I've seen this clue in the Evening Standard.

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.