The most common and most likely answer to this crossword clue is the 15 plus 1 letter word ANTICAPITALIST –
I've seen this crossword clue in The Sunday Telegraph
A
N
T
I
C
A
P
I
T
A
L
I
S
T
Â
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€
“
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 ANTICAPITALIST – mean?
ANTICAPITALIST – noun- One who subscribes to anticapitalism.
- Against or opposed to capitalism.