Crossword Genius

After inconclusive vote, emerge and create sharp division (8)

Ross

I believe the answer is:

polarise

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

'create sharp division' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'after inconclusive vote emerge' is the wordplay.
'after inconclusive vote' becomes 'pol' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'emerge' becomes 'arise' (I've seen this before).
'pol'+'arise'='POLARISE'

'and' is the link.

Can you help me to learn more?

(Other definitions for polarise that I've seen before include "divide" , "Cause to adopt extreme positions - lose pair (anag)" , "Set or become set at opposite extremes of opinion" .)

I've seen this clue in The Times.
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