What the setter could offer for Poles? It leads to disaster (8,5)
I believe the answer is:
slippery slope
'it leads to disaster' is the definition.
(process likely to lead to a disastrous eventuality)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for slippery slope that I've seen before include "Restoration to life" , "dangerous course" , "Course leading to a bad end" , "Downward-leading course" , "Course likely to lead one into trouble" .)