One of the meanings of the actual answer is the halfway house word that means a medley. They are variants, really.
The first three down letters form a word meaning except. And again, the missing letter in the first clue comes from a short form synonym for blood as a term of address. Much loved among some of the youth of today.
If you read the preamble carefully you will see that the message spelt by the extra letters reveals an instruction and a name. That should clear up the final nine letters