Brutal police make move seizing revolutionary tapes (7)
I believe the answer is:
gestapo
'brutal police' is the definition.
'Gestapo' can be an answer for 'police' (Nazi secret police). I'm not certain of the 'brutal' bit.
'move seizing revolutionary tapes' is the wordplay.
'move' becomes 'go' (to go is to move).
'seizing' is an insertion indicator (inserted letters are seized).
'revolutionary' indicates an anagram.
'tapes' with letters rearranged gives 'estap'.
'go' enclosing 'estap' is 'GESTAPO'.
'make' is the link.
Can you help me to learn more?
(Other definitions for gestapo that I've seen before include "Postage to Nazi secret police" , "Brutal force" , "Men in black" , "Notorious secret police" , "Nazi German police" .)