Crossword Genius

Beloved setter secures containers for leftovers (5,4)

Ross

I believe the answer is:

doggy bags

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

'containers for leftovers' is the definition.
(I've seen this in another clue)

'beloved setter' is the wordplay.
I cannot really see how this works, but
'setter' could be 'dog' (a setter is a type of dog) and 'dog' is present in the answer.
This explanation may well be incorrect...

'secures' acts as a link.

Can you help me to learn more?

(Another definition for doggy bags that I've seen is " People remove them after eating".)

I've seen this clue in The Irish Times.
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