Go on crime spree with maximum efficiency (9)

I believe the answer is:

ergonomic

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

'go on crime spree with maximum efficiency' is the definition.
I can't judge whether this defines the answer.

'go on crime spree with maximum efficiency' is the wordplay.
'go on crime' can be anagrammed to 'ERGONOMIC'.
Though, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for ergonomic that I've seen before include "Well-designed" , "Maximising efficiency" , "operating with maximum efficiency" , "Designed for work efficiency" , "Studying man in his work environment" .)

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

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