Revolutionary raid conducted by Anti-Terrorism Squad ends (6)
I believe the answer is:
aborts
'ends' is the definition.
(aborting is a kind of ending)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for aborts that I've seen before include "Ends prematurely" , "Brings to premature end" , "Pulls the plug on" , "Brings to premature conclusion" , "Terminates prematurely or miscarries" .)