Crossword Genius

Roads sound here mainly (6,3)

Ross

I believe the answer is:

aegean sea

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

This clue might be a double definition.

'roads sound' is the first definition.
The definition and answer can be both natural objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?

'here mainly' is the second definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

Can you help me to learn more?

(Other definitions for aegean sea that I've seen before include "Part of Med" , "Area around Greece" , "Part of the Mediterranean between Greece and Turkey" , "Main" , "Where 11 [GREEK] swims" .)

I've seen this clue in The Guardian.
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