Mount climbed by Moses (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mount climbed by moses</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 sinai that I've seen before include "Mt. where Moses received 10 Commandments" , "11 Across peninsula" , "Mountain in Egypt" , "Mountainous Egyptian peninsula" , "Egyptian location" .)