Crossword Genius

Renaissance composer producing sound of kiwi, say? (4)

Ross

I believe the answer is:

byrd

I'm a little stuck... Click here to teach me more about this clue!

'renaissance composer' is the definition.
'byrd' can be an answer for 'composer' (I've seen this before). I am not sure about the 'renaissance' bit.

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for byrd that I've seen before include "polar explorer" , "Prolific scorer" , "Composer of church music" , "Old scorer" , "Richard -, US aviator (first flight over North pole)" .)

I've seen this clue in The Guardian.
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