Official language of Cambodia (5)
I believe the answer is:
khmer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">official language of cambodia</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>
(Other definitions for khmer that I've seen before include "Cambodian language" , "Asian" , "Language of Cambodia" , "'... Rouge, led by Pol Pot in Cambodia (5)'" , "Native Cambodian" .)