He's in port (5)

I believe the answer is:

barry

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

'he's in port' is the definition.
'Barry' can be an answer for 'he's'. I'm not certain of the 'in port' bit.

'he's in port' is the wordplay.
'he' becomes 'Barr'.
'in port' becomes 'y' (I can't explain this - if you can you should give a lot more credence to this answer).
'barr'+'y'='BARRY'

Can you help me to learn more?

(Other definitions for barry that I've seen before include "-- Island, Welsh resort" , "South Wales town -- boy's name" .)

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.