orson, at one point you said that you have the answer Barley.
The only place where it would fit in is 14a.
But I do not see any connection (Give preliminary payment for taps at one's home).
I still have to solve the NE corner.
Hint on 12a: I illuminate small volume held in one hand (8)
should give me an entry point.
I found the boat which could be a bed.
Still not sure about the theme.
Thanks.