Is it helping to clean up TV? (4)

I believe the answer is:

soap

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

'clean up tv?' is the definition.
'soap' can be an answer for 'clean' (soaping is a kind of cleaning). I am not certain of the 'up tv?' bit.

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for soap that I've seen before include "Cleaning substance - melodramatic TV or radio series" , "Serialised drama" , "TV programme; wash" , "Cleaner - TV programme" , ". . . . opera, sentimentalised radio or tv series" .)

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.