Contestant in the penultimate round of a tournament (12)

I think it could be either:

Which length description are you looking for?:

4-8

semifinalist

(Other definitions for semifinalist that I've seen before include "One of last four in knockout competition" , "One in last four of a contest" , "Contestant among the last four" , "One of last four left in competition" .)

I've seen this clue in The Times.

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