He seeks trophies of foolish early Governor (3-6)

I believe the answer is:

mug-hunter

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'seeks trophies of foolish early governor' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'he' is the wordplay.
I cannot quite see how this works, but
'he' could be 'hunter' and 'hunter' is found within the answer.
The remaining letters 'mug' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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