Enduring blues performance, crowd confined (9)

I believe the answer is:

depressed

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But I can't explain it at all! Could you help me understand?

(Other definitions for depressed that I've seen before include "Sad or indented" , "showing the blues" , "Poverty-stricken" , "Unhappy, despondent" , "Having been pushed down" .)

I've seen this clue in The Sun.

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