Parting word (5)
I believe the answer is:
adieu
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">parting word</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for adieu that I've seen before include "Goodbye, madame" , "Auf wiedersehen" , "left, making this?" , "cheers" , "the last word in France" .)