He's in Dickens, you know (3)

I believe the answer is:

ken

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

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

'he's in dickens you' is the wordplay.
'KEN' is hidden in amongst the letters.
But, I am uncertain how the hidden word is indicated.

Can you help me to learn more?

(Other definitions for ken that I've seen before include "Awareness" , "One's range of knowledge" , "Identify; -- Livingstone" , "Notice" , "Know; man's name" .)

I've seen this clue in the Evening Standard.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.