Crossword Genius

My amusing upset in the sports centre (9)

Ross

I believe the answer is:

gymnasium

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

'the sports centre' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'my amusing upset' is the wordplay.
'upset' indicates anagramming the letters.
'my'+'amusing'='myamusing'
'myamusing' anagrammed gives 'GYMNASIUM'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for gymnasium that I've seen before include "Place for exercising" , "... German school" , "Keep-fit facility" , "Place to work out" , "Physical training facility" .)

I've seen this clue in The Globe and Mail and The Guardian.
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