Points out but don't see changes (7)

I believe the answer is:

denotes

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'points out' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?

'don't see changes' is the wordplay.
'changes' indicates anagramming the letters.
'dont'+'see'='dontsee'
'dontsee' with letters rearranged gives 'DENOTES'.

'but' is the link.

Can you help me to learn more?

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

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