Yes, Syd, with nothing, returning from long wanderings (7)

I believe the answer is:

odyssey

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'from long wanderings' is the definition.
I can't judge whether this definition defines the answer.

'yes syd with nothing returning' is the wordplay.
'with' is a charade indicator (letters next to each other).
'nothing' becomes 'O' (looks like zero - 0).
'returning' shows that the letters should be reversed in order.
'yes'+'syd'+'o'='yessydo'
'yessydo' backwards is 'ODYSSEY'.

Can you help me to learn more?

(Other definitions for odyssey that I've seen before include "'Long eventful journey, such as that of Ulysses (7)'" , "Homerian epic" , "Epic wanderings of 13 across" , "A long arduous journey as described by Homer" , "Long eventful voyage" .)

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

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