Reviewed one idea about power, like tragic king? (8)

'reviewed one idea about power like tragic king?' is the definition.
I can't tell whether this defines the answer.

'reviewed one idea about power' is the wordplay.
'reviewed' is an anagram indicator (letters reviewed or revised).
'about' indicates putting letters inside.
'power' becomes 'p' (symbol in physics).
'one'+'idea'='oneidea'
'oneidea' is an anagram of 'oediean'.
'oediean' enclosing 'p' is 'OEDIPEAN'.

Can you help me to learn more?