@Algot You were!
Had English been my mother tongue, I'd have kept on trying to match words I knew to the grid, confident that I *would* know the secret word.
But English is not my mother tongue, so I was aware that I might not know the word I was looking for.
Thus instead of relying on my own vocabulary, I quickly switched to looking for 7-letter sequences which looked like an English word or a part of one.
The only contenders were HITFLIB and FLIBBER.
Google did the rest…