What unrepentant one will do with sticky stuff (5)
I believe the answer is:
resin
This clue could be a double definition.
'what unrepentant one will do' is the first definition.
The definition suggests a singular noun which matches the answer.
'sticky stuff' is the second definition.
(sticky substance)
'with' acts as a link.
Can you help me to learn more?
(Other definitions for resin that I've seen before include "It's obtained from tree-sap" , "Myrrh, for instance" , "Viscous substance in some trees" , "plant extract" , "Rinse out this substance from trees" .)