Crossword Genius

Becomes parody, as last of employees is demoted (4,2)

Ross

I believe the answer is:

ends up

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

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

'parody as last of employees is demoted' is the wordplay.
I cannot really understand how this works, but
'last' could be 'end' (I've seen this in another clue) and 'end' is present in the answer.
The remaining letters 'sup' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Independent.
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