Crossword Genius

Fish I like lacking female’s vividness of colour (10)

Ross

I believe the answer is:

brilliancy

I'm a little stuck... Click here to teach me more about this clue!

'vividness of colour' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'fish i like lacking female's' is the wordplay.
'fish' becomes 'brill' (brill is a kind of fish).
'like' becomes 'fancy' (both can mean to find someone attractive).
'lacking' is a deletion indicator.
'female' becomes 'f' (abbreviation).
'fancy' with 'f' taken away is 'ancy'.
'brill'+'i'+'ancy'='BRILLIANCY'

Can you help me to learn more?

(Another definition for brilliancy that I've seen is " Stroke of genius; superb chess game".)

I've seen this clue in The Times.
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