Scarpered from crazed force holding enemy back (4,3)
I believe the answer is:
made off
'scarpered' is the definition.
(to make off is to run away or scarper)
'crazed force holding enemy back' is the wordplay.
'crazed' becomes 'mad' (I've seen this before).
'force' becomes 'F' (symbol used in Physics e.g. f=ma).
'holding enemy' becomes 'foe' (synonyms. I am not sure about the 'holding' bit.).
'back' says the letters should be written in reverse.
'f'+'foe'='ffoe'
'ffoe' back-to-front is 'eoff'.
'mad'+'eoff'='MADE OFF'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for made off that I've seen before include "Having escaped" , "ran" .)