Crossword Genius

Joint auditor’s born in France (4)

Ross

I believe the answer is:

knee

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'joint' is the definition.
(knee is a kind of joint)

'auditor's born in france' is the wordplay.
'auditor's' becomes 'k' (I am not sure about this - if you are sure you should believe this answer much more).
'born in france' becomes 'nee' ('born' in French - 'originally named' in English).
'k'+'nee'='KNEE'

Can you help me to learn more?

(Other definitions for knee that I've seen before include "One has a cap" , "This is capped by the patella" , "Leg?joint" , "Major joint in leg" , "One bent in genuflection" .)

I've seen this clue in The Hindu.
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