3 down: He or I suggest stove ring (7)
I’m supposing stove ring = element. The rest?
26 across: Scoutmaster’s books not reviewed? (5)
Absolutely no idea. Apparently, the answer is tonto.
4 down: Daredevil retailed alloy (5)
Here, brash = daredevil, but I can’t explain anything else.
21 down: Love album spun into huge video download (7)
The answer is vodcast, which I suppose means spun into = cast, but why love album = vod?
22 down: Joke over tennis call (3, 2)
The answer: not up. What? Does that have something to do with joke = to pun? But when is not up ever said on the tennis court? What?