Some cryptic clues

building a centre outside northern gateway (8)
land unusual audition, but miss out (5)
make better medicine (6)

make better medicine (6) = remedy (double def)

building a centre outside northern gateway (8)= entrance (anag. of a centre+n)

land unusual audition, but miss out (5)

land = India; anagram of aUdiTiOn after removing
UTO (the letters of "out").
Quite worthy of Pandora's wet noodle!?

I think it's clean, Denis. The letters you need to anagram are all provided.

Agree; but not "out" is missing; it's an anagram
of "out" that's missing.
So I thought something like "but miss out BADLY"
would be required....
anyway, matters little to reducing the price of groceries

I think the word "unusual" qualifies as an anagram indicator. The letters being removed, (out) don't need to be removed in a specific order.

thanks