From the water, we found out it's raining (3,7)

I believe the answer is:

wet weather

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'out it's raining' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'from the water we' is the wordplay.
'from' indicates anagramming the letters (from the letters).
'the'+'water'+'we'='thewaterwe'
'thewaterwe' is an anagram of 'WET WEATHER'.

'found' acts as a link.

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