Possible Clues:

• Essential
• Characters minding father sick of missing the fancy bits
• Basic, not elaborate or fancy
• Such an airline won't feed you for fifty florins, possibly
• Clear number with grand mal et petit mal
• Like a basic package implying a lack of excitement for Cockney
• Straightforward
• Name associated with streams and plain
• Note if Rolls gets makeover that's basic
• Without inessentials