Answer: fauxpas

AnswerCrossword Clue
FAUXPASA breach of etiquette.
FAUXPASSocial gaffe
FAUXPASSlurping one's soup, say
FAUXPASGaffe
FAUXPASWearing white after Labor Day, e.g.
FAUXPASSAP
FAUXPASIndiscretion.
FAUXPASSocial blunder.
FAUXPASTactless remark.
FAUXPASSlip
FAUXPASMistake.
FAUXPASSocial blunder
FAUXPASImpropriety
FAUXPASSocial no-no
FAUXPASEating peas with a knife, say
FAUXPASElbows on the table, say
FAUXPASBreach of etiquette
FAUXPASBlunder