Say Ringo caught an insect (6)

I believe the answer is:

beetle

I'm a little stuck... Click here to teach me more about this clue!

'insect' is the definition.
(I know that beetle is a type of insect)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for beetle that I've seen before include "Scurry - iconic small car" , "Insect with hard back" , "An insect; a ramming tool" , "Four-winged insect" , "pest" .)

I've seen this clue in The Sun.

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.