Rest periods (6)
I believe the answer is:
breaks
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">rest periods</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>
(Other definitions for breaks that I've seen before include "Snaps; holidays" , "Rest periods" , "Interruptions of continuity" , "Ruptures" , "stretches between lessons" .)