Chichén Itzá builder (5)
I believe the answer is:
mayan
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">chichen itza builder</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 mayan that I've seen before include "Relating to a people of Central America" , "Pre-Conquest inhabitant of Central America" , "from an ancient culture" , "Former native of Central America" , "of a bygone civilisation" .)