Lacking limits, get one to go to school (4)

I believe the answer is:

eton

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

'school' is the definition.
(famous UK public school)

'lacking limits get one to go' is the wordplay.
'ETON' is hidden in amongst the letters.
However, I'm unsure how the hidden word is indicated.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for eton that I've seen before include "Easy to understand" , "Kind of collar or jacket (worn at college?)" , "Posh British public school" , "Note sent up to English public school" , "Posh English school of note" .)

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

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