Taken dishonestly (6)
I believe the answer is:
stolen
'taken dishonestly' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for stolen that I've seen before include "` `The ... Child' ' (Yeats)" , "Purloined or embezzled" , "Taken unlawfully" , "Lifted" , "plagiarised?" .)