Extremely horny mandarin song (4)

I believe the answer is:

hymn

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'song' is the definition.
(I've seen this before)

'extremely horny mandarin' is the wordplay.
'extremely' says to hollow out the word (remove centre letters).
'mandarin' becomes 'mn' (I can't explain this - if you can you should believe this answer much more).
'horny' with its centre taken out is 'hy'.
'hy'+'mn'='HYMN'

Can you help me to learn more?

(Other definitions for hymn that I've seen before include "Song sung in church" , "religious composition" , "One sung in church" , "Religious song of praise" , "Godly song" .)

I've seen this clue in The Hindu.

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