The most common and most likely answer to this crossword clue is the 4 letter word SLAV
I've seen this crossword clue in Independent
S
L
A
V
More clues leading to the result SLAV
- European's son John
- Pole — ladies’ man?
- Waltz back briefly to see East European
- Split personality typically revealed in gents’ lavatory
- Southern gents possibly doing for East European
- East European son has somewhere to go
- European worker treated badly meeting premature end
- Almost break one’s back working for Eastern European
- East European not quite in bondage
- Half the arrivals back in the race
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.