Sounds like where aircraft are suspended (7)

I believe the answer is:

hangars

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'sounds' is the definition.
Although both the answer and definition are plural nouns, I don't understand how one could define the other.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for hangars that I've seen before include "Aircraft sheds" , "Where one may see aircraft" , "places to store crates, perhaps" .)

I've seen this clue in The Irish News.

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