Cryptic crossword clue
Sparkling wine found in old empty tube tunnel 8

The most common and most likely answer to this crossword clue is the 8 letter word EXCAVATE

I've seen this crossword clue in Financial Times
E
X
C
A
V
A
T
E

Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

What does EXCAVATE mean?

EXCAVATE verb
  1. To make a hole in (something); to hollow.
  2. To remove part of (something) by scooping or digging it out.
  3. To uncover (something) by digging.
EXCAVATE noun
  1. Any member of a major grouping of unicellular eukaryotes, of the clade Excavata.

Latest crossword clues with full explanations