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When eleven was sounded, seemed tired (6)

Ross

I believe the answer is:

sighed

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'tired' is the definition.
The answer and definition can be both related to bodily activities as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?

I cannot understand how the rest of the clue works.

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(Other definitions for sighed that I've seen before include "Gave dejected sound" , "Exhaled softly and sadly" , "Audibly yearned" , "Expressed wordless sorrow" , "fed up" .)

I've seen this clue in the Evening Standard.
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