Groups of seven (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">groups of seven</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 septets that I've seen before include "Musicians" , "Groups of seven" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">groups of seven</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Another definition for heptads that I've seen is " Groups of seven".)