A person whose hobby is the exploration and study of caves (9)
I believe the answer is:
spelunker
(Other definitions for spelunker that I've seen before include "whizz in a chamber" , "Chambers I explore" , "caver" .)
I've seen this clue in The Independent.
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.