Italian river (5)
I believe the answer is:
tiber
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">italian river</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 tiber that I've seen before include "River entering the Mediterranean at Ostia" , "divides Rome" , "Italian banker" , "Roman river" , "Rome's river" .)