Takes unlawfully (6)
I believe the answer is:
steals
'takes unlawfully' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for steals that I've seen before include "Takes without owner's consent" , "Purloins" , "Robs" , "Takes property without right or permission" , "Pilfer, filch" .)