Has noisy fun around large fairground attractions (9)

'fairground attractions' is the definition.
Although both the answer and definition are plural nouns, I can't understand how they can define each other.

'has noisy fun around large' is the wordplay.
I cannot really understand how this works, but
'around' could be 'ca' (circa) and 'ca' is located in the answer.
'large' could be 'l' (eg in clothes sizes) and 'l' is present in the answer.
The remaining letters 'rouses' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?