Crossword Genius

US junkie more politically correct, giving up whiskey for a bit of chardonnay (5)

Ross

I believe the answer is:

coker

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

'up whiskey for a bit of chardonnay' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'us junkie more politically correct' is the wordplay.
I cannot quite see how this works, but
'correct' could be 'ok' and 'ok' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'giving' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.
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