Courage needed to obtain container (6)
I believe the answer is:
bottle
'courage' is the definition.
(bottle can mean courage)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for bottle that I've seen before include "Vessel for liquids" , "confidence" , "Here's where it's to be found" , "Grit" , "Vessel - nerve" .)