Clean round in Arundel (7)

I believe the answer is:

launder

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

'clean' is the definition.
(laundering is a kind of cleaning)

'in arundel' is the wordplay.
'arundel' can be anagrammed to 'LAUNDER'.
However, I'm not clear how the anagram is indicated.

'round' acts as a link.

Can you help me to learn more?

(Other definitions for launder that I've seen before include "Led a run (anag)" , "Make clean, clothing or money" , "clean habits" , "Act illegally" , "Wash and iron clothes etc" .)

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.