Opening of bottles: port and spirit (4)
I believe the answer is:
brio
'spirit' is the definition.
(thesaurus)
'opening of bottles port' is the wordplay.
'opening of' says to take the initial letters.
'port' becomes 'rio' (I've seen this before).
The first letter of 'bottles' is 'b'.
'b'+'rio'='BRIO'
'and' acts as a link.
(Other definitions for brio that I've seen before include "Enthusiasm" , "'Liveliness, vivacity (4)'" , "Vivacity of style" , "Dash or verve, from Italian" , "Animation (Italian)" .)