Crossword Genius

Convince someone to provide an introduction the man upstairs (4,2,7)

Ross

I believe the answer is:

lead to believe

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'convince' is the definition.
(thesaurus)

'someone to provide an introduction the man upstairs' is the wordplay.
I cannot really understand how this works, but
'someone' could be 'eve' (Eve is an example) and 'eve' is located in the answer.
'to' is present in the answer.
'an' could be 'i' (Roman numeral for one) and 'i' is located in the answer.
'man' could be 'lead' (I have seen 'front man' mean 'lead' so perhaps 'man' could also mean 'lead') and 'lead' is found within the answer.
The remaining letters 'bel' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in the Irish Times.
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