Crossword Genius

In a musical medley, the part without wind (4)

Ross

I believe the answer is:

calm

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

'wind' is the definition.
(I know that calm is a type of wind)

'in a musical medley the part' is the wordplay.
'in' says the answer is hidden in the clue.
'CALM' is hidden in the letters of 'musical medley part'.

'without' is the link.
I am not very happy about this link. It may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for calm that I've seen before include "stained-glass window maker could need this" , "Pacific" , "'Tranquil, placid (4)'" , "Cool, not excited" , "Still - force 0 on the Beaufort scale" .)

I've seen this clue in the Evening Standard.
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