Restricted, checked (6,2)
I believe the answer is:
reined in
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">restricted</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">checked</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for reined in that I've seen before include "Stopped or slowed up, a horse perhaps" , "Slowed up one's horse" , "Curbed" , "'Slowed, checked (6,2)'" , "restricted" .)