Into pieces (5)
'into pieces' is the definition.
(synonyms)
This is all the clue.
(Other definitions for asunder that I've seen before include "(Split) apart" , "Apart (archaic)" , "separately" , "Into parts or pieces" , "Sad rune (anag.)" .)
'into pieces' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for apart that I've seen before include "out on a limb?" , "Estranged - in pieces" , "Independently" , "First Christmas present from my love" , "Cut off - in pieces" .)