Crossword Genius

Not truly attractive, one way the dawning of love must break in (11)

Ross

I believe the answer is:

dishonestly

I'm a little stuck... Click here to teach me more about this clue!

'must break in' is the definition.
Both the answer and definition are adverbs. Perhaps there's an association between them I don't understand?

'not truly attractive one way the dawning of love' is the wordplay.
I cannot quite understand how this works, but
'not' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
'way' could be 'st' (abbreviation for street) and 'st' is found within the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for dishonestly that I've seen before include "in designing fashion" , "In an untrustworthy manner" , "fraudulently" , "Untrustworthily" .)

I've seen this clue in The Times.
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