Enclosure containing our bottle (7)
I believe the answer is:
courage
'bottle' is the definition.
(I've seen this before)
'enclosure containing our' is the wordplay.
'enclosure' becomes 'cage' (cage is a kind of enclosure).
'containing' indicates putting letters inside.
'cage' going around 'our' is 'COURAGE'.
(Other definitions for courage that I've seen before include "See 6" , "Grit" , "Bravery, heroism" , "Bottle" , "Bravery, fortitude" .)