Social gaffe (4,3)
I believe the answer is:
faux pas
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">social gaffe</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for faux pas that I've seen before include "Socially tactless act" , "Socially awkward act" , "Social gaffe" , "Bloomer" , "Social indiscretion" .)