The puny stag, being unruly, gets punished there (7,4)

I believe the answer is:

naughty step

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

'punished there' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'the puny stag being unruly' is the wordplay.
'being unruly' is an anagram indicator.
'the'+'puny'+'stag'='thepunystag'
'thepunystag' is an anagram of 'NAUGHTY STEP'.

'gets' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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.