Left for part of Egypt, we hear (8)

I believe the answer is:

portside

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'left' is the definition.
(thesaurus)

'part of egypt we hear' is the wordplay.
I cannot really see how this works, but
'part' could be 'side' (side is a kind of part) and 'side' is found in the answer.
'of' could be 'o' and 'o' is found within the answer.
This explanation may well be incorrect...

'for' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish News.

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