Spring water (5,7)

I think it could be either:

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5,6

5,7

april showers

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'spring water' is the definition.
'April showers' can be an answer for 'water' (thesaurus). I am unsure of the 'spring' bit.

'spring water' is the wordplay.
'spring' becomes 'april'.
'water' becomes 'showers' (I can't justify this - if you can you should believe this answer much more).
'april'+'showers'='APRIL SHOWERS'

Can you help me to learn more?

(Other definitions for april showers that I've seen before include "Seasonal rain" , "Spring rain" , "Springtime rain" , "Typical spring weather!" .)

I've seen this clue in the Evening Standard.

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