Nigerian language (6)
I believe the answer is:
yoruba
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nigerian language</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 yoruba that I've seen before include "People of SW Nigeria" , "West African language" , "Language of West Africa" , "A Nigerian language" , "W African language" .)