Barrier’s resistance weakening (7)
I believe the answer is:
railing
This could be a double definition.
'barrier's' is the first definition.
(railing is a kind of barrier)
'resistance weakening' is the second definition.
Although both the answer and definition are present participle verbs, I don't understand how they can define each other.
Can you help me to learn more?
(Other definitions for railing that I've seen before include "Complaining - fence" , "Protesting (about); fence" , "Fencing - complaining - attacking" , "border of park?" , "Haranguing -- horizontal bar on supports" .)