Egyptian city home to The King? (7)

I believe the answer is:

memphis

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

'egyptian city' is the definition.
'Memphis' can be an answer for 'city' (ancient Egyptian city). I am not certain of the 'egyptian' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for memphis that I've seen before include "City of Tennessee/Egypt" , "Ancient Egyptian city" , "US city where Gracelands is located" , "Largest city in Tennessee" , "Name of city at different times overlooking the Nile and Mississippi?" .)

I've seen this clue in The Sun.

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