US sitcom character's life ends badly (8)

I believe the answer is:

seinfeld

'us sitcom character's' is the definition.
(character in the sitcom Seinfeld)

'life ends badly' is the wordplay.
'badly' indicates anagramming the letters.
'life'+'ends'='lifeends'
'lifeends' is an anagram of 'SEINFELD'.

(Another definition for seinfeld that I've seen is " TV show".)

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