As ports go, a poor one? (6)

I believe the answer is:

abadan

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'as ports go' is the definition.
I can't judge whether this defines the answer.

'a poor one?' is the wordplay.
'poor' becomes 'bad' (similar in meaning).
'one?' becomes 'an' (an apple is one apple).
'a'+'bad'+'an'='ABADAN'

Can you help me to learn more?

(Other definitions for abadan that I've seen before include "African capital" , "foreign port" , "oil-refining place" , "in Iran" .)

I've seen this clue in the Evening Standard.

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