Crossword Genius

Pretty old Scot you heard about (7)

Ross

I believe the answer is:

picture

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'pretty old scot you heard about' is the definition.
I can't tell whether this definition defines the answer.

'old scot you heard about' is the wordplay.
'old scot' becomes 'Pict' (Picts were an ancient people of Scotland).
'heard' shows a homophone (sound like).
'about' becomes 're' ('re' means regarding or about).
'you' sounds like 'u'.
'pict'+'u'+'re'='PICTURE'

Can you help me to learn more?

(Other definitions for picture that I've seen before include "One can paint a thousand words, it's said" , "Portrait; film" , "Photo" , "Depiction" , "Imagine; film" .)

I've seen this clue in the Sydney Morning Herald.
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