Crossword Genius

Problem-solving method coined by Edward de Bono (7,8)

Ross

I believe the answer is:

lateral thinking

(Other definitions for lateral thinking that I've seen before include "Creative activity" , "Problem solving using an indirect approach" , "Problem-solving technique" , "unconventional views" , "unusual approach to solving the problem" .)

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