What's run into sink? (4)

I believe the answer is:

drip

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

'what's run into sink?' is the definition.
I can't judge whether this defines the answer.

'run into sink?' is the wordplay.
'run' becomes 'r' (cricket abbreviation).
'into' indicates putting letters inside.
'sink?' becomes 'dip' ('dip' can be a synonym of 'sink').
'r' inserted inside 'dip' is 'DRIP'.

Can you help me to learn more?

(Other definitions for drip that I've seen before include "Leak slowly" , "Fall as from leaky tap" , "wet blanket" , "Fall in small drops as from wet clothes" , "See 6" .)

I've seen this clue in The Independent.

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.