Cunning about loan provider in a limited way (9)

I believe the answer is:

slenderly

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'cunning about loan provider in a limited way' is the definition.
I can't tell whether this defines the answer.

'cunning about loan provider in a limited way' is the wordplay.
'cunning' becomes 'sly' (synonyms).
'about' is an insertion indicator.
'loan' becomes 'lend' (synonyms).
'provider in a limited way' becomes 'er' (I can't explain this - if you can you should give a lot more credence to this answer).
'lend'+'er'='lender'
'sly' enclosing 'lender' is 'SLENDERLY'.

Can you help me to learn more?

(Other definitions for slenderly that I've seen before include "In a gracefully thin manner" , "Slightly" , "in inadequate way" .)

I've seen this clue in The Daily Express.

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