Hiya Bullfrog,
I've just checked back to original email and I have made another typo with it.
The clue when sent by ixion had 'visitors' spelt with 'o' and not 'e' as I have typed in the clue list.
However, rest assured, it has no bearing on the cryptic make up of the clue,
it means 'those who visit' and has no other esoteric, or hidden wordplay factors.
I apologise for the misspelt entry.
Les40