Make amends with item reordered previously (2,3,4)
I believe the answer is:
at one time
'previously' is the definition.
(thesaurus)
'make amends with item reordered' is the wordplay.
'make amends' becomes 'atone' (I've seen this before).
'with' says to put letters next to each other.
'reordered' is an anagram indicator (I've seen 'reorder' mean this (I've seen this in other clues)).
'item' anagrammed gives 'time'.
'atone'+'time'='AT ONE TIME'
(Other definitions for at one time that I've seen before include "Taking place simultaneously" , "together" , "in the past" , "Formerly" , "in concert" .)