With the order reversed (4,5)
I believe the answer is:
vice versa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">with the order reversed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for vice versa that I've seen before include "film" , "Revise a VC? (anag)" , "otherwise" , "The other way around" , "back to front" .)