They no longer have a significance to banshees running wild (3-5)
I believe the answer is:
has-beens
'they no longer have a significance' is the definition.
The definition suggests an adverb but the answer is not.
'banshees running wild' is the wordplay.
'running wild' indicates anagramming the letters.
'banshees' anagrammed gives 'HAS-BEENS'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for has-beens that I've seen before include "People no longer of significance" , "People not doing as well as they once did, like Banshees" , "People no longer important (colloq.)" , "People past their best, no longer in the news" , "People who used to be famous" .)