Ruthless force goes out to limit minor strike (7)
I believe the answer is:
gestapo
'ruthless force' is the definition.
'Gestapo' can be an answer for 'force' (Nazi secret police). I am unsure of the 'ruthless' bit.
'goes out to limit minor strike' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'to limit' is an insertion indicator (inserted letters are restrained or limited).
'minor strike' becomes 'tap' (tap can mean to strike or hit. I am not sure about the 'minor' bit.).
'goes' is an anagram of 'geso'.
'geso' enclosing 'tap' is 'GESTAPO'.
Can you help me to learn more?
(Other definitions for gestapo that I've seen before include "Postage to Nazi secret police" , "Police detested" , "Geheime Staatspolizei" , "war force" , "Brutal force" .)