Verse of a poem (6)
I believe the answer is:
stanza
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">verse of a poem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stanza that I've seen before include "Verse of poem" , "Section of verse" , "Fixed number of lines of verse" , "Part of a poem" , "Unit of a poem" .)