Destroys documents (6)
I believe the answer is:
shreds
'destroys documents' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for shreds that I've seen before include "Torn pieces and tatters" , "Small pieces, maybe of bread" , "Tears into strips" , "Small pieces as of torn paper" , "Rags, tattered pieces" .)