Funky reggae covers popular for displaying harmony (8)

I believe the answer is:

agreeing

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'displaying harmony' is the definition.
I can't tell whether this definition defines the answer.

'funky reggae covers popular' is the wordplay.
'funky' indicates anagramming the letters (an unusual form of the letters).
'covers' means one lot of letters goes inside another.
'popular' becomes 'in' ('in' can mean trendy).
'reggae' with letters rearranged gives 'agreeg'.
'agreeg' placed around 'in' is 'AGREEING'.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for agreeing that I've seen before include "In accordance with" , "Consenting" , "OK" , "In accord" , "In concurrence" .)

I've seen this clue in The Times.

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