Dig European bubbly, cracking processed toxin! (10)

'dig' is the definition.
(I know that dig can be written as excavation)

'european bubbly cracking processed toxin' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'bubbly' becomes 'cava' (I have seen 'Spanish bubbly' mean 'cava' so perhaps 'bubbly' could also mean 'cava').
'cracking' indicates putting letters inside (inserted letters go into a gap or crack).
'processed' indicates an anagram.
'toxin' is an anagram of 'xtion'.
'cava' inserted within 'xtion' is 'xcavation'.
'e'+'xcavation'='EXCAVATION'