Home for bird or mythical king (6)

I believe the answer is:

nestor

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'mythical king' is the definition.
I know that 'mythical' relates to this answer. I also know that both the answer and definition are singular nouns

'home for bird or' is the wordplay.
'home for bird' becomes 'nest'.
'nest'+'or'='NESTOR'

Can you help me to learn more?

(Other definitions for nestor that I've seen before include "Greek hero and wise counsellor" , "Old man" , "Wise counsellor of ancient Greece" , "Sage" , "Oldest, wisest Greek (Trojan Wars)" .)

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

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