He's short, you know (3)

I believe the answer is:

ken

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

'know' is the definition.
(Scottish term meaning to know)

'he's short you' is the wordplay.
'he' becomes 'Kev' (short for Kevin).
'short' means to remove the last letter.
'you' becomes 'n' (I can't justify this - if you can you should give a lot more credence to this answer).
'kev' with its last letter removed is 'ke'.
'ke'+'n'='KEN'

Can you help me to learn more?

(Other definitions for ken that I've seen before include "Understanding - boy's name" , "Know; man's name" , "Identify; -- Livingstone" , "Notice" , "Awareness" .)

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.