Place to say "I do" (5)
I believe the answer is:
altar
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">place to say i do</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for altar that I've seen before include "Table used for the mass or eucharist" , "place of unions" , "Place of worship" , "Table for religious sacrifices or ceremonies" , "section of church" .)