Crossword Genius

Mastermind converted in Greene (8)

Ross

I believe the answer is:

engineer

'mastermind' is the definition.
(synonyms)

'converted in greene' is the wordplay.
'converted' is an anagram indicator.
'in'+'greene'='ingreene'
'ingreene' with letters rearranged gives 'ENGINEER'.

(Other definitions for engineer that I've seen before include "plan" , "Person in charge of building bridges, etc." , "One who designs, makes or runs motors" , "Mastermind" , "One uses scientific knowledge to solve practical problems" .)

I've seen this clue in The Sun.
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