One gathers nothing in tougher circumstances (7)

I believe the answer is:

hoarder

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

But I can't explain it at all! Could you help me understand?

(Other definitions for hoarder that I've seen before include "18 [MAGPIE] , perhaps" , "Saver" , "Person acting like a squirrel" , "One who accumulates things" , "One who accumulates or stockpiles" .)

I've seen this clue in The Sun.

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.