Crossword Genius

A rising little place noted for its industry (7)

Ross

I believe the answer is:

anthill

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

'little place noted for its industry' is the definition.
I can't judge whether this defines the answer.

'a rising' is the wordplay.
'a' becomes 'an'.
'rising' becomes 'thill' (I can't explain this - if you can you should give a lot more credence to this answer).
'an'+'thill'='ANTHILL'

Can you help me to learn more?

(Other definitions for anthill that I've seen before include "Mound of insects" , "There's much work to be done here" , "Scene of great activity" , "Many a worker here" , "Nest" .)

I've seen this clue in The Irish News.
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