Bumped into as one went out (6)

I believe the answer is:

struck

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

'bumped' is the definition.
The definition and answer can be both to do with contact as well as being past participle verbs.
Maybe there's an association between them I don't understand?

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for struck that I've seen before include "Hit, knocked with blow" , "stopped working" , "Hit or impressed" , "Hit - withheld labour" , "hit hard" .)

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.