The OP wasn’t ambiguous in her knowledge of how the potential shidduch dresses, so there was no concern about relating misinformation when she knew the answer. Her concern was how to address a question where the response would truthfully reflect negatively on the person. And in a case of a shidduch, it is tachlis for the other side to be aware of the truth prior to considering the potential match. That is my take on the situation as described.
I don’t understand your point about hiding it. If asked, obviously the questioner is unaware of the situation which is why she asked about it.