Like sheep, I've no curiosity (5)

I believe the answer is:

ovine

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

'like sheep' is the definition.
(I've seen this in another clue)

'i've no curiosity' is the wordplay.
'i've no' anagrams to 'OVINE'.
However, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for ovine that I've seen before include "Resembling a sheep" , "Pertaining to sheep" , "Sheep-like" , "like a mug" , "Like the Cheviots" .)

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

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