2d Keen on running water, if about substitutes for hard drink (11).
'Screwdriver' fits. There's river for running water, but I can't see how anything else fits.
24a Losing out, wants to see every other pair going native in US? (6)
?i?u?n
I suspect this is a word I've never heard of.
Still don’t understand:
23a Strip art going down quickly (6)
Divest?