Call round in a storm: it's not nice weather (7)

I believe the answer is:

raining

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'not nice weather' is the definition.
'raining' can be an answer for 'weather' (I have seen 'Bad weather' mean 'raining' so perhaps 'weather' could also mean 'raining'). I'm not certain of the 'not nice' bit.

'call round in a storm' is the wordplay.
'call' becomes 'ring' (telephone call).
'round' means one lot of letters goes inside another.
'storm' indicates an anagram.
'in'+'a'='ina'
'ina' is an anagram of 'ain'.
'ring' enclosing 'ain' is 'RAINING'.

'it's' acts as a link.

Can you help me to learn more?

(Other definitions for raining that I've seen before include "Bad weather" , "Showering" , "Pouring perhaps" , "With water falling from the sky" , "Depositing cats and dogs" .)

I've seen this clue in the Evening Standard.

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