Karate instructor is seen getting beaten up (6)

I believe the answer is:

sensei

'karate instructor' is the definition.
(term for a martial arts teacher)

'is seen getting beaten up' is the wordplay.
'getting beaten up' indicates an anagram.
'is'+'seen'='isseen'
'isseen' with letters rearranged gives 'SENSEI'.

(Another definition for sensei that I've seen is " Teacher".)

I've seen this clue in The Times.

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