The other way round (4,5)
I believe the answer is:
vice versa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the other way round</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for vice versa that I've seen before include "The opposite (also applies)" , "film" , "With parts the other way round" , "In reverse order" , "otherwise" .)