The most common and most likely answer to this crossword clue is the 9 letter word ICELANDER
I
C
E
L
A
N
D
E
R
More clues leading to the result ICELANDER
- North Country inhabitant I badmouth audibly?
- National reserve network with warning light coming back on?
- European craft touching down on frozen mass
- European and I slur in conversation
- European, heartily sick over Spanish, English and German articles
- Foreign citizen
- Just one left with Cinderella, beaten in National
- European slipping spirit into fermented cider
- European craft touching down on frozen planet?
- Nordic person, one with family around east, turning communist
Buddy explains!

The straight part
We know that "Nordic person" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case nordic person = icelander.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.