Glue-stick has this disaster (6,3)
I believe the answer is:
sticky end
'this disaster' is the definition.
(I've seen this before)
'glue-stick' is the wordplay.
I cannot quite see how this works, but
'glue' could be 'stick' (to stick with glue) and 'stick' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'has' acts as a link.
Can you help me to learn more?
(Other definitions for sticky end that I've seen before include "Unhappy destiny" , "Unpleasant conclusion" , "disaster" , "Unpleasant death" .)