True ... I then remembered 'O menel aglar elenath' and realised that I was talking pants.
Another interesting password, so this one might disappoint. However, if the theme is still unguessed at the end *and* I can work out the answer to Huinesoron's 'One Thing In Common' question, (highly unlikely!), I might drop the answers in there as well. As far as I am aware, and with one caveat that I will explain, I think these are the only examples pertaining to this theme.
Here we go, then:
1. French valley lingerie? No way! Mix it up for him.
2. A handle and the French one are in turmoil for her.
3. After an awful, unsung muddle, forty-nine with reveal her.
4. She sounds like a silly one, the Spanish girl.
5. Spouse around a way for him.
By the way, in my clues, from now on, sing/sang/sung can mean a note, and unsung/unsing can mean take a note away.