Shakespearean verse (6)
I believe the answer is:
sonnet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shakespearean verse</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 sonnet that I've seen before include "14-line poem" , "Fourteen-line 11" , "14-line verse" , "The poem was sent on" , "Poem of fourteen lines" .)