Any evil simply expressed (7)

I believe the answer is:

naively

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'any evil simply expressed' is the definition.
I can't tell whether this defines the answer.

'any evil simply expressed' is the wordplay.
'any evil' anagrams to 'NAIVELY'.
But, I'm not sure how this is indicated.

Can you help me to learn more?

(Other definitions for naively that I've seen before include "like an innocent child" , "Artlessly" , "In an inexperienced and unwise manner" , "In an unsophisticated manner" , "in a simple manner" .)

I've seen this clue in The Globe and Mail.

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