The most common and most likely answer to this crossword clue is the 9 letter word TRIBALIST
I've seen this crossword clue in The Daily Telegraph
T
R
I
B
A
L
I
S
T
Buddy explains!
The straight part
We know that "narrow in outlook" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case narrow in outlook = tribalist.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 TRIBALIST mean?
TRIBALIST noun- A person who identifies with, or has loyalty to a tribe or similar group