Naturalist John ____ (4)

I believe the answer is:

muir

'naturalist john' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for muir that I've seen before include "Scottish upland heath" , "Frank -, British comedy writer; Scots for heath" .)

I've seen this clue in the King Feature Syndicate and The Star Tribune.

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.