Large female's unrestrained eating and empty snacks (8)

I believe the answer is:

giantess

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

'large female's unrestrained eating and empty snacks' is the definition.
I can't judge whether this defines the answer.

'unrestrained eating and empty snacks' is the wordplay.
'unrestrained' indicates anagramming the letters.
'and' says to put letters next to each other.
'empty' means to remove the middle letters.
'snacks' with its middle taken out is 'ss'.
'eating' is an anagram of 'giante'.
'giante'+'ss'='GIANTESS'

Can you help me to learn more?

(Other definitions for giantess that I've seen before include "Big woman" , "Very large female" .)

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.