Possible Clues:

• Separate quarters for a visitor
• Hugest building by river is a bed and breakfast
• Boarding establishment
• Suppose American, accepting very small measure eagerly at first, wants a place to stay
• Accommodation you once endlessly conjectured about
• Where 11-Down may stay
• Reckon you once must be content with ultimate in state pension
• Small hotel endlessly speculated about you formerly
• Accommodation where judge with key has confined you once
• You once invested in divine European accommodation for travellers