Irritate, prod geisha with emojis, say (10)

I believe the answer is:

ideographs

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'emojis say' is the definition.
I can't judge whether this defines the answer.

'irritate prod geisha' is the wordplay.
'prod geisha' can be anagrammed to 'IDEOGRAPHS'.
But, I'm unsure how the anagram is indicated.

'with' is the link.

Can you help me to learn more?

(Another definition for ideographs that I've seen is " representational images".)

I've seen this clue in The Hindu.

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