Sub-machine gun loaded by little honey (7)
I believe the answer is:
sweeten
'honey' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for sweeten that I've seen before include "placate" , "Add, eg, sugar to" , "Soften up" , "temper" , "Add sugar or honey" .)