Crossword Genius

Stark alternatives, after making a splash? (4,2,4)

Ross

I believe the answer is:

sink or swim

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

'making a splash?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'stark alternatives' is the wordplay.
I cannot quite see how this works, but
'alternatives' could be 'ors' (I've seen this in another clue) and 'ors' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'after' is the link.

Can you help me to learn more?

(Other definitions for sink or swim that I've seen before include "Do/die strategy" , "Cope (or not) unaided" , "Survive (or not) by one's own efforts" , "To succeed or fail (the only options!)" .)

I've seen this clue in The Guardian.
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