He dealt with state affairs a lot — wrong description of Boris? (1,6,2,2,5,3)

I believe the answer is:

a father of at least six

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'he dealt with state affairs a lot wrong description of boris?' is the definition.
I know nothing about this answer so I can't judge whether this works.

'he dealt with state affairs a lot wrong description of' is the wordplay.
'dealt with' indicates anagramming the letters.
'wrong description of' becomes 'x' (I can't explain this - if you can you should believe this answer much more).
'state'+'affairs'+'a'+'lot'='stateaffairsalot'
'he' mixed up with 'stateaffairsalot' gives 'afatherofatleastsi'.
'afatherofatleastsi'+'x'='A FATHER OF AT LEAST SIX'

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I've seen this clue in The Guardian.

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