Crossword Genius

Bunker some go back into (4)

Ross

I believe the answer is:

trap

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

'bunker' is the definition.
(I know that bunker can be written as trap)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for trap that I've seen before include "Lure, snare" , "Cakehole (slang)" , "Confine" , "mug" , "Light carriage - it's sometimes sprung!" .)

I've seen this clue in the Evening Standard.
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.