Aswan Dam river (4)
I believe the answer is:
nile
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">aswan dam river</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 nile that I've seen before include "River at Luxor" , "Cleopatra's river" , "River associated with Cleopatra" , "Egypt's river" , "World's longest river" .)