Crossword Genius

Valuable song heard to take shape (8)

Ross

I believe the answer is:

heirloom

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'valuable' is the definition.
The definition and answer can be both related to property as well as being singular nouns.
Perhaps you can see a link between them that I can't see?

'song heard to take shape' is the wordplay.
'song' becomes 'air' (I've seen this before).
'heard' indicates a 'sounds like' (homophone) clue.
'to take shape' becomes 'loom' (I've seen this in another clue).
'air' is a homophone of 'heir'.
'heir'+'loom'='HEIRLOOM'

Can you help me to learn more?

(Other definitions for heirloom that I've seen before include "Item handed down for years" , "Valuable family object" , "Valued possession that's handed down" , "something passed on" , "Valuable item still in family" .)

I've seen this clue in The Sun.
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