Keep doing wrong? That's sticky (5)
I believe the answer is:
resin
I believe this is a double definition.
'keep doing wrong?' is the first definition.
(re-sin, to sin again)
'that's sticky' is the second definition.
(sticky substance)
(Other definitions for resin that I've seen before include "Viscous fluid from tree sap" , "plant extract" , "Contributor to plastics industry" , "frankincense, for instance?" , "Sticky stuff oozing from trees" .)