Classic poem (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">classic poem</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 epode that I've seen before include "lines" , "verse form" , "Kind of lyric ode" , "Form of lyric poem" .)