Sorrowful poem (5)
I believe the answer is:
elegy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sorrowful 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 elegy that I've seen before include "Poem of mourning" , "Plaintive poem" , "Song of lament" , "Sad or reflective poem" , "Mournful work" .)