Crossword Genius

Evergreen tune celeb covers with daughter (8)

Ross

I believe the answer is:

standard

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'evergreen tune' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?

'celeb covers with daughter' is the wordplay.
'celeb' becomes 'star' (I've seen this in another clue).
'covers' means one lot of letters goes inside another.
'with' becomes 'and'.
'daughter' becomes 'd' (genealogical abbreviation).
'star' going around 'and' is 'standar'.
'standar'+'d'='STANDARD'

Can you help me to learn more?

(Other definitions for standard that I've seen before include "Established model - flag" , "Reference point, benchmark" , "possibly rose" , "The usual range" , "authority" .)

I've seen this clue in The Sunday Times and The Times.
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