The most common and most likely answer to this crossword clue is the 8 letter word YUGOSLAV
I've seen this crossword clue in Independent
Y
U
G
O
S
L
A
V
More clues leading to the result YUGOSLAV
- Old Balkan bloke set up larger than usual facilities
- A guy loves to exude energy — active old European
- What’s more, chap’s turned against old European
- Raised in Kiev, also, guy’s former national
- Old European fellow upset Big John
- Against further ridicule about old Republican
- Old East European bloke raised Big John!
- Old European revolutionary boy’s vulgar endlessly
- Old European woman thus accompanying bloke to the west
- Old Balkan bloke erected mapmakers’ toilet
Buddy explains!
The straight part
We know that "What’s more" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case what’s more = yugoslav.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.