Digs up old wine with note on top of stopper (9)

'digs up' is the definition.
('excavate' can be a synonym of 'dig up')

'old wine with note on top of stopper' is the wordplay.
'old' becomes 'ex' (prefix meaning former or onetime).
'wine' becomes 'cava' (type of Spanish wine).
'with' means one lot of letters go next to another.
'note on' becomes 'te' (musical note. I am not sure about the 'on' bit.).
'top of' indicates taking the first letters.
The first letter of 'stopper' is 's'.
'ex'+'cava'+'te'+'s'='EXCAVATES'