The most common and most likely answer to this crossword clue is the 6 letter word SICILY
S
I
C
I
L
Y
More clues leading to the result SICILY
- Succeeded at first with aloof manner in island
- Start of spring with a chill in Mediterranean location
- Island showing cold nature following sun
- Island where spring starts frostily
- So Italy doesn’t want soldiers in
- Head of state, in a hostile manner, leaves Mediterranean island
- Island first to strike in hostile manner
- Island state chief with a most unfriendly manner
- Land in the Mediterranean south, coldly
- Nice here in secretive island
Buddy explains!

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