Crossword Genius

Turn cold before rise -- this factor cooling? (4,5)

Ross

I believe the answer is:

wind chill

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

'cold before rise this factor cooling?' is the definition.
I know nothing about this answer so I can't judge whether this works.

'turn' is the wordplay.
I cannot really understand how this works, but
'turn' could be 'chill' (chilling is a kind of turning) and 'chill' is found in the answer.
The remaining letters 'wind' 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 Telegraph.
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