The last thing a concert-goer may want to hear (6)
I believe the answer is:
finale
'the last' is the definition.
(synonyms)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for finale that I've seen before include "Ending" , "The concluding part of a performance" , "Last item of event" , "Closing part of an entertainment" , "Conclusion, end" .)