Alcove; break (6)
I believe the answer is:
recess
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">alcove</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">break</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for recess that I've seen before include "Parliamentary downtime" , "secluded spot" , "Space set back in wall" , "bay" , "When Parliament is not sitting" .)