Ancient Icelandic writings (4)
I believe the answer is:
edda
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ancient icelandic writings</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for edda that I've seen before include "Lots of old lines" , "Icelandic poems" , "Ancient Icelandic book" , "Foreign literature" , "of Old Norse poems" .)