Cryptic Stuff

[not_for_sale]

While it was done some years ago I see, I thought I would try a cryptic crossword-like thread for fun and to try and boost a little more interest here. I made up the below question for anyone interested in such a challenge. I thought the first person to get it correct might come up with the next question. A clue though - if you copy one from a newspaper or magazine etc., the answer can often be found on the internet. I can explain the answer for anyone who asks. 🙂

The prisoner at the cave would not stand for the electrically charged droplets of water.

(12 letters)

[twyngwyn]

strange dog debts (7)

[countessalmirena]

Curious 

😵‍💫🐶💸

[twyngwyn]

All yours, countess

[countessalmirena]

Still, on one hand the fellow drops in for a quiet exchange, admits the idiot (7)

[countessalmirena]

Clues

Still, on one hand the fellow drops in for a quiet exchange, admits the idiot (7)

There are two charades, a letter exchange, a containment.

_a_____

[countessalmirena]

More clues

Still, on one hand the fellow drops in for a quiet exchange, admits the idiot (7)

There are two charades, a letter exchange, a containment. (Two main charades, but also a single letter abbr and single letter charade, for the letter exchange.) 

[charade] [abbr] [letter substitution indicator…->] [charade] [<-…] [containment indicator] {charade}

The container has a letter substituted by another letter, and then the containment takes place.

_a____e

[not_for_sale]

Passive...?