Lure into illegality (6)
I believe the answer is:
entrap
'lure into illegality' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for entrap that I've seen before include "Lure into wrongdoing in order to arrest" , "Take" , "Lure into danger" , "Deceive -- lead on" , "Catch in a snare" .)