Edging close to the finishing line with this but there are a couple (well, more actually) of parsings and definitions I'm struggling to see....
39 Bouncer gets bar back (4)
I've got what I'm sure is the right answer, a "bar" reversed/back, but just cannot see how it's a "bouncer!
10 Artificial leather wader for going round cave backwards
Again, I have the answer, Rexine, but cannot parse it.