Central African river (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">central african river</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">central african 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 congo that I've seen before include "Africa's second longest river" , "African river/republic" , "Major central African river" , "African river (aka Zaire)" , "Africa country and river" .)