Prepare to testify to conduct that ends violently (4,3,5)

I believe the answer is:

take the stand

'prepare to testify' is the definition.
(as in taking the stand in court)

'conduct that ends violently' is the wordplay.
'conduct' becomes 'take' (synonyms).
'violently' indicates anagramming the letters.
'that'+'ends'='thatends'
'thatends' is an anagram of 'thestand'.
'take'+'thestand'='TAKE THE STAND'

'to' is the link.

(Another definition for take the stand that I've seen is " Give evidence".)

I've seen this clue in The Guardian.

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