Draws in customers finally with funds not available originally (5)

I believe the answer is:

sucks

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

'draws in' is the definition.
('suck' can be a synonym of 'draw in')

I can't explain the remainder of the clue.

(Other definitions for sucks that I've seen before include "Uses a straw" , "Makes a partial vacuum with the mouth" , "Draws into the mouth, liquid or air" .)

I've seen this clue in the Sydney Morning Herald.

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.