Followed them closely, noting will should not be put into dodgy digital wallet (9)

I believe the answer is:

tailgated

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

'followed' is the definition.
(tailgating is a kind of following)

I don't understand the remainder of the clue.

I've seen this clue in The Irish 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.