The most common and most likely answer to this crossword clue is the 9 letter word ETHIOPIAN
I've seen this crossword clue in Financial Times
E
T
H
I
O
P
I
A
N
More clues leading to the result ETHIOPIAN
- African playing the piano all round India
- African one impressed by The Piano after editing
- National of Haiti? Nope, wrong
- Haiti open after revolution for one from another continent
- African writer impressed by The Piano after editing
- Haiti open possibly for native far from there
- I hope it transforms a North African
- National Thai Open I broadcast
- Horny African, I phone at 1, excitedly
- National from Haiti open to change
Buddy explains!

The straight part
We know that "one from another continent" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one from another continent = ethiopian.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.