Didn't allow to be arrested (7)
I believe the answer is:
stopped
'be arrested' is the definition.
(thesaurus)
'didn't allow to' is the wordplay.
I cannot really see how this works, but
'to' is within the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for stopped that I've seen before include "Prevented" , "gave up" , "Ceased, ended" , "What Terminator did" .)