Possible Clues:

• Company
• Visitor's estimate reduced temperature
• Someone invited
• Company man?
• Customer of a hotel
• Sounds as if one might have got the answer to 21 across
• Noisily speculated about visitor
• Conjectured audibly 'Who's been invited?'
• If the wind will blow like this round the East, this will come to stay
• Sounds as if you've hit on the answer to the one that's staying