Luminescent beetle (7)

I believe the answer is:

firefly

(Other definitions for firefly that I've seen before include "Beetle which glows in the dark" , "Glower" , "crawler" , "Luminescent insect" , "One shining" .)

I've seen this clue in The Times.

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.