Ask questions but bury opinion (9)
I believe the answer is:
interview
'ask questions' is the definition.
I can't judge whether this defines the answer.
'bury opinion' is the wordplay.
'bury' becomes 'inter' (to inter is to put into the ground).
'opinion' becomes 'view' (synonyms).
'inter'+'view'='INTERVIEW'
'but' acts as a link.
Can you help me to learn more?
(Other definitions for interview that I've seen before include "encounter" , "Question and answer session" , "Oral examination" , "Formal meeting" , "Formal discussion with job seeker" .)