Blonde about fifty showing instinctive aptitude (5)

I believe the answer is:

flair

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'instinctive aptitude' is the definition.
'flair' can be an answer for 'aptitude' (flair is a kind of aptitude). I'm unsure of the 'instinctive' bit.

'blonde about fifty' is the wordplay.
'blonde' becomes 'fair' (similar in meaning).
'about' indicates putting letters inside.
'fifty' becomes 'L' (Roman numeral).
'fair' enclosing 'l' is 'FLAIR'.

'showing' acts as a link.

Can you help me to learn more?

(Other definitions for flair that I've seen before include "Stylishness, originality" , "Bent" , "Taste" , "Natural ability to do something well (5)" , "Natural ability or elegance" .)

I've seen this clue in The Irish News.

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