Tango close to body (5)

I believe the answer is:

torso

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'body' is the definition.
(a person's middle)

'tango close' is the wordplay.
'tango' becomes 'T' (phonetic alphabet: alpha, bravo, charlie etc.).
'close' becomes 'orso' (I can't justify this - if you can you should believe this answer much more).
't'+'orso'='TORSO'

'to' is the link.

Can you help me to learn more?

(Other definitions for torso that I've seen before include "part of body will be found" , "unfinished work" , "Trunk, something unfinished" , "Chest" , "Main part of human body" .)

I've seen this clue in The Guardian.

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