The most common and most likely answer to this crossword clue is the 11 letter word ORIENTALIST
I've seen this crossword clue in The Sunday Telegraph
O
R
I
E
N
T
A
L
I
S
T
More clues leading to the result ORIENTALIST
Buddy explains!
The straight part
We know that "Expert on faraway part of world" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case expert on faraway part of world = orientalist.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.