Upset daughter is chosen for job (12)
I believe the answer is:
disappointed
'upset' is the definition.
'daughter is chosen for job' is the wordplay.
'daughter' becomes 'dis' (I've seen this in other clues).
'is chosen for job' becomes 'appointed'.
'dis'+'appointed'='DISAPPOINTED'
(Other definitions for disappointed that I've seen before include "Unhappy" , "Let-down, frustrated" , "Sad and let-down" , "Feeling sad" , "Saddened" .)