Current character in Greece, mostly affable Greek princess (9)

I believe the answer is:

iphigenia

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'greek princess' is the definition.
The definition suggests a singular noun which matches the answer.

'current character in greece mostly affable' is the wordplay.
'current' becomes 'I' (symbol for electric current).
'character in greece' becomes 'phi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'mostly' means to remove the last letter.
'affable' becomes 'genial' (synonyms).
'genial' with its last letter removed is 'genia'.
'i'+'phi'+'genia'='IPHIGENIA'

Can you help me to learn more?

(Another definition for iphigenia that I've seen is " Sacrificed daughter of Agamemnon".)

I've seen this clue in The Times.

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