10 across: Directly opposed to Milne capturing live music intro (5)
There’s Steven Milne the footballer and AA Milne the author, but I don’t know the answer to the clue.
12 across: Ruthless lord lodged protest rally, unseating friend in power (9)
22 across: Indigenous people from Grafton in crime report (5)
We figured this was Sioux just because it fit with the cross clues, but we had no idea why.
24 across: See you later for Spooner’s dog advice (6-3)
It hurt not being able to solve this Spooner, but unsolved it remains.
27 across: Wardrooms switch in favour of man astride a steed? (9)
28 across: Suffering inertia? Not in the extreme! (9)
Looks like an anagram of inertia could be involved…
29 across: Twisted, bit like Camp David guest (5)
5 down: Silent, cruder, gutless orator? No way (7)
7 down: My stretched cats… (tempt) (7)
21 down: #1 ranking immune to upset? (3, 4)
Top spot looks good, but I have no explanation.
23 down: Part of the team pawns post (2, 5)
24 down: Bantu speakers regularly tour around 21-down (5)
No clue really.