Bit of a stinker this one, isn't it. A mostly complete grid and I've no idea where it's going.
These two I think I can guess, but can't see the wordplay:
"Bird down promptly in the past"; B??E??? (2 words)
"Low American not very excitable chasing gold"; ?R?E??
Is the ONE SORTED, YUM thing misleading? I'm sure I need letters that aren't there.