Remained sober for the hearing (6)
I believe the answer is:
stayed
'remained' is the definition.
(staying is a kind of remaining)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for stayed that I've seen before include "Remained; guyed" , "Remained, propped up" , "Secured; remained" , "Hung about" , "Didn't go" .)