Legendary Irish bard (6)
I believe the answer is:
ossian
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">legendary irish bard</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 ossian that I've seen before include "Legendary Gaelic poet faked by Macpherson" , "Gaelic bard, son of Fingal" , "Legendary Cthree Gaelic bard" , "Fictitious Irish poet" , "Invented Irish hero" .)