Confesses (to) (6)
I believe the answer is:
admits
'confesses to' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for admits that I've seen before include "Takes in" , "Confesses or allows to enter" , "Lets in and confesses" , "Does not deny" , "Agrees to the truth of something" .)