Foolish lady swallows dubious ruses without question (9)

I believe the answer is:

assuredly

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'question' is the definition.
(thesaurus)

'foolish lady swallows dubious ruses' is the wordplay.
'foolish' is an anagram indicator (a foolish spelling).
'swallows' is an insertion indicator.
'dubious' indicates an anagram.
'lady' with letters rearranged gives 'adly'.
'ruses' anagrammed gives 'ssure'.
'adly' going around 'ssure' is 'ASSUREDLY'.

'without' is the link.
This may not be right. It may belong to another bit of the clue.

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I've seen this clue in The Telegraph.

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