Being besotted with dad's ex, hit it off and ran abroad to conquer America (6,8)

I believe the answer is:

father fixation

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'besotted with dad's ex hit it off and ran abroad to conquer america' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'being' is the wordplay.
I cannot quite understand how this works, but
'being' could be 'father' (father is a kind of being) and 'father' is present in the answer.
The remaining letters 'fixation' 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 Independent.

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