Possible Clues:

• It might make things sticky for you if you do this when you're told to sin no more
• Hashish, for one
• If you're a second offender, perhaps, you may get stuck with it
• The sort of sap that's a second offender
• Varnish compound
• Engineers go wrong with viscous material
• It exudes from pines
• Sticky substance in trees
• Sort of a sap to be a second offender
• It's sticky to exercise control about the South