Force to stop misrepresentation - go! (4)
I believe the answer is:
life
'go' is the definition.
(go can mean life or energy)
'force to stop misrepresentation' is the wordplay.
'force' becomes 'F' (symbol used in Physics e.g. f=ma).
'to stop' is an insertion indicator.
'misrepresentation' becomes 'lie' (I can't justify this - if you can you should give a lot more credence to this answer).
'f' placed inside 'lie' is 'LIFE'.
Can you help me to learn more?
(Other definitions for life that I've seen before include "Birth to death" , "The longest sentence" , "Vitality, vigour" , "Animation" , "Maximum stretch?" .)