Set limits (9)
I believe the answer is:
demarcate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">set limits</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for demarcate that I've seen before include "Bound" , "Set limits" , "Separate; mark off" , "Limit" .)