The most common and most likely answer to this crossword clue is the 6 letter word TRIBAL
I've seen this crossword clue in Financial Times
T
R
I
B
A
L
More clues leading to the result TRIBAL
- Pilot restrains British family
- Bowled in match between extended families
- Family start to boo during court case
- Bishop in court case showing loyalty to his people?
- Ethnic group’s test going around Belgium
- Initially Tony Blair distorted such family links
- Native boy appears in distress
- Joke playfully accepted by chess champion loyal to group
- Representative of “The People’s Bishop” involved in court case
- Group of people’s second-rate in test
Buddy explains!

The straight part
We know that "showing loyalty to his people" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case showing loyalty to his people = tribal.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 TRIBAL mean?
TRIBAL noun- A design or image that has been influenced by indigenous peoples; especially such a tattoo.
- Of or relating to tribes.
- Based on or organized according to tribes.