Crossword Genius

Though a natural for, is eliminated (3,3)

Ross

I believe the answer is:

cut out

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

'though a natural' is the definition.
I can't judge whether this defines the answer.

'for is eliminated' is the wordplay.
'for' becomes 'cut' (I can't explain this - if you can you should give a lot more credence to this answer).
'is eliminated' becomes 'out' (I've seen this in another clue).
'cut'+'out'='CUT-OUT'

Can you help me to learn more?

(Other definitions for cut out that I've seen before include "Stop" , "Excise" , "Automatic safety circuit-breaker" , "Cease operating" , "Cease to function, like car engine" .)

I've seen this clue in the Evening Standard.
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