Cricket test is on, confusing person with supposedly high IQ (6,9)

I believe the answer is:

rocket scientist

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'person with supposedly high iq' is the definition.
I can't tell whether this definition defines the answer.

'cricket test is on confusing' is the wordplay.
'confusing' indicates anagramming the letters.
'cricket'+'test'+'is'+'on'='crickettestison'
'crickettestison' anagrammed gives 'ROCKET SCIENTIST'.

Can you help me to learn more?

(Other definitions for rocket scientist that I've seen before include "boffin" , "Clever chap" , "A high achiever" , "Mastermind" , "I launch farreaching studies" .)

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

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