Nawab's new address in Africa? (5)

I believe the answer is:

bwana

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'address in africa?' is the definition.
The definition suggests a singular noun which matches the answer.

'nawab's new' is the wordplay.
'new' is an anagram indicator.
'nawab' is an anagram of 'BWANA'.

Can you help me to learn more?

(Other definitions for bwana that I've seen before include "African boss" , "Old master" , "master in Africa" , "African form of address" , "African term of respect" .)

I've seen this clue in The Globe and Mail.

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