The most common and most likely answer to this crossword clue is the 10 letter word GENERALIST
I've seen this crossword clue in The Times
G
E
N
E
R
A
L
I
S
T
More clues leading to the result GENERALIST
Buddy explains!
The straight part
We know that "Who’s uninterested in the narrow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case who’s uninterested in the narrow = generalist.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 GENERALIST mean?
GENERALIST noun- A person with a broad general knowledge, especially one with more than superficial knowledge in several areas and the ability to combine ideas from diverse fields.
- A general practitioner.
- Species which can thrive in a wide variety of environmental conditions.