Person of long-standing loyalty (8)

I believe the answer is:

stalwart

(Other definitions for stalwart that I've seen before include "Strong and reliable" , "Loyal servant" , "Dependable figure" , "Loyal figure" , "Steadfast" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.