I got the job! So at last tucked into a quiet beer and some drugs (9)
I believe the answer is:
appointee
'i got the job' is the definition.
(an appointee is someone given a particular job)
'into a quiet beer and some drugs' is the wordplay.
'into' indicates putting letters inside.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'beer' becomes 'pointe' (I can't explain this - if you can you should believe this answer much more).
'and' is a charade indicator (letters next to each other).
'some drugs' becomes 'E' (somebody 'on E' could also be 'on drugs').
'a'+'p'+'pointe'='appointe'
'appointe' placed around 'e' is 'APPOINTEE'.
'so at last tucked' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
(Other definitions for appointee that I've seen before include "The person given the job" , "Successful applicant" , "One put into post" , "chosen candidate" , "Job-holder" .)