Last Few Questions In A Cryptic Quiz

[roberte123]

1) Category "This House" (answer will be connected in some way to the UK parliament), Clue is: Corridor of Power in the land (2 words, 11 letters and 5 letters).
2) Category "Animal Favourites" (answer is an animal or a character connected with an animal): A moose loose about his hoose (2 words, 5 letters and 6 letters).
3) Category "Music Makers" (answer will be a musician or group): Alto sax to knock one over (two words, 10 letters and 8 letters)

Any help appreciated.

[kettledrum]

1. Westminster lobby ?

[kawagino]

Ernie Smuntz (mouse hunt)???? (not very Scottish though)

[bibblebub]

3) Cannonball Adderley ?

https://en.wikipedia.org/wiki/Cannonball_Adderley

i would be surprised if there are any others fitting (10,8)

[megfitz]

I'm doing this quiz also, I have Westminster Halls but think Lobby is better, Animal Favourites ..I am stumped on .
Music Makers ..I also have Cannonball Adderley.
Do you have an answer for Animal Favourites 6..Her pet's hopes were dashed (6,7)
Or Frases 5 Steely strategy makes for uncomfortable handling (8,3,6)
Are there any I can swap with you?.