To rob atrociously is simply inhuman (5)

I believe the answer is:

robot

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

'simply inhuman' is the definition.
I can't tell whether this definition defines the answer.

'to rob atrociously' is the wordplay.
'to rob' anagrams to 'ROBOT'.
Though, I am unsure how this is indicated.

'is' acts as a link.

Can you help me to learn more?

(Other definitions for robot that I've seen before include "Automaton or sci-fi creature" , "Automated machine" , "Computer-controlled machine" , "performer lacking emotion" , "Unpaid worker" .)

I've seen this clue in the Evening Standard.

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