The most common and most likely answer to this crossword clue is the 8 letter word ADRIATIC
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More clues leading to the result ADRIATIC
- A twit not finishing a twitch, making some waves?
- Sea air acid, pollutant finally dispersing
- I dart about in a mostly freezing stretch of water
- Describing maritime communities having a medic, oddly inapt, in charge
- Detail both a weed and a parasite in sea
- Sea a tad icy in reality, starts out cold
- CIA and Triad involvement between Italy and the Balkans
- Roman emperor’s endless automatic action in waters off Italy
- Split view? Cardi B’s predecessor’s made up with it!
- Surprising raid by rebel spies, surrounding bar somewhere in the Mediterranean
Buddy explains!

The straight part
We know that "somewhere in the Mediterranean" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case somewhere in the mediterranean = adriatic.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.