Wherein the pigs ate the pasties dad left? (5)

I believe the answer is:

sties

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

'wherein the pigs ate' is the definition.
I can't judge whether this definition defines the answer.

'pasties dad left?' is the wordplay.
'dad' becomes 'pa' (both can mean one's father).
'left?' suggests deleting specific letters.
'pasties' with 'pa' taken out is 'STIES'.

'the' acts as a link.

Can you help me to learn more?

(Another definition for sties that I've seen is " Places for pigs".)

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.