Outlaw said to have a name for banditry (5)
I believe the answer is:
robin
'outlaw' is the definition.
(Robin Hood)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for robin that I've seen before include "Red-breasted Christmas card bird" , "boy" , "Garden bird" , "Bird, killed by Sparrow" , "Seasonal bird" .)