A sprout addiction leaving time for port (3,5)

I believe the answer is:

abu dhabi

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'time for port' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'a sprout addiction' is the wordplay.
'sprout' becomes 'bud' (bud is a kind of sprout).
'addiction' becomes 'habi' (I've seen this in another clue).
'a'+'bud'+'habi'='ABU DHABI'

'leaving' is the link.

Can you help me to learn more?

(Other definitions for abu dhabi that I've seen before include "Federal capital of the United Arab Emirates" , "Persian Gulf emirate" , "Asian capital" , "foreign land" , "in Middle East" .)

I've seen this clue in The Times and The Sunday Times.

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