Crossword Genius

Group of voters taking in different factors in foreign harbours (5,2,4)

Ross

I believe the answer is:

ports of call

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'group of voters taking' is the definition.
I know nothing about this answer so I can't tell whether this works.

'different factors in foreign harbours' is the wordplay.
'different' is an anagram indicator (letters placed in a different order).
'in' is an insertion indicator.
'foreign harbours' becomes 'poll' (I can't justify this - if you can you should give a lot more credence to this answer).
'factors' with letters rearranged gives 'rtsofca'.
'rtsofca' put into 'poll' is 'PORTS OF CALL'.

'in' acts as a link.

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I've seen this clue in The Times.
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