Approach with some pomp to perform a menial task (5,2)

I believe the answer is:

sweep up

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

'approach' is the definition.
The definition and answer can be both to do with fundamental existence as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?

I don't understand the remainder of the clue.

Can you help me to learn more?

I've seen this clue in The Globe and Mail.

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.