Possible Clues:

• Weekend visitor
• Family spokesman's reckoned he'd be staying with them
• ... Visiting relative or friend ..
• Party leader goes around America, for example, and European Union upsetting one of those asking to stay at home
• Welcomer has installed superior musical device for visitor
• The D?il visitor isn't at home for long
• Visitor judged broadcast by theatre audience
• Visitor the Commons surmised, we are told
• Scales perhaps supposed to be picked up for visitor
• Trundle bed user, perhaps