Remain on the bar stool, pickled, and do nothing? (3,5)
I believe the answer is:
sit tight
'remain' is the definition.
(sitting tight is a kind of remaining)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for sit tight that I've seen before include "Wait and see!" , "Maintain one's seat" , "Informally, remain sedentary, don't act" , "Remain firmly in one's place" , "Go nowhere" .)