Making arrest, East German police succeeded (6)

I believe the answer is:

stasis

I'm a little stuck... Click here to teach me more about this clue!

'making arrest' is the definition.
'stasis' can be an answer for 'arrest' (I've seen this before). I'm not sure about the 'making' bit.

'east german police succeeded' is the wordplay.
'east german police' becomes 'stasi' (state security service of the GDR, East Germany).
'succeeded' becomes 's' (genealogical abbreviation).
'stasi'+'s'='STASIS'

Can you help me to learn more?

(Other definitions for stasis that I've seen before include "Enduring state" , "Period of inactivity" , "lack of action" , "Period of equilibrium" , "absence of change" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.