Crossword Genius

Stormy, raw and rainy out, to be sure (1,7,3)

Ross

I believe the answer is:

i warrant you

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'be sure' is the definition.
I know nothing about this answer so I can't tell whether this works.

'stormy raw and rainy out' is the wordplay.
'stormy' is an anagram indicator.
'and' means one lot of letters go next to another.
'rainy'+'out'='rainyout'
'raw' put after 'rainyout' is 'rainyoutraw'.
'rainyoutraw' is an anagram of 'I WARRANT YOU'.

'to' acts as a link.

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I've seen this clue in The Everyman puzzle in The Observer.
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