Only leaves what one is entitled to (4,7)

I believe the answer is:

just deserts

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

'one is entitled to' is the definition.
I can't tell whether this definition defines the answer.

'only leaves' is the wordplay.
'only' becomes 'just' (synonyms).
'leaves' becomes 'deserts' (to desert someone is to leave them).
'just'+'deserts'='JUST DESERTS'

'what' acts as a link.

Can you help me to learn more?

(Other definitions for just deserts that I've seen before include "Fair fate - rightful reward" , "Fate or results one deserves" , "What one has coming" .)

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.