Crossword Genius

Humming part of hornpipe pirates recalled (4)

Ross

I believe the answer is:

ripe

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'humming part' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?

'of hornpipe pirates recalled' is the wordplay.
'of' indicates the answer is hidden within the clue.
'recalled' is a reversal indicator.
'epir' is hidden within 'hornpipe pirates'.
'epir' written backwards gives 'RIPE'.

Can you help me to learn more?

(Other definitions for ripe that I've seen before include "daring" , "Opportune" , "Fully developed or matured" , "Mature and ready to be eaten" , "Fully grown, ready for eating" .)

I've seen this clue in The Telegraph.
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