It will be perfect state when you attempt to stop Pakistani militia finally (6)
I believe the answer is:
utopia
'it will be perfect state' is the definition.
The definition suggests a singular noun which matches the answer.
'you attempt to stop pakistani militia finally' is the wordplay.
'you' becomes 'u' (I've seen this in other clues).
'finally' says to take the final letters.
The last letters of 'attempt to stop pakistani militia' are 'topia'.
'u'+'topia'='UTOPIA'
'when' is the link.
Can you help me to learn more?
(Other definitions for utopia that I've seen before include "Thomas More's 1516 book about life on an imaginary island" , "of limited interest to G&S" , "Ideal country" , "impossible to find" , "Perfect world?" .)