Related Clues:

• Foundation course latterly given to graduates
• A vacant look shown by boxer? It's not acid
• Chemical extracted from chalk -- a lime
• Chemical compound since removed from US state no.51?
• It will not pass 24
• Mean to be bottom
• Lowest part of something
• Base dipso taken short when imbibing a litre
• Centre of operations devoid of morality
• Low standard
• Vile; basis
• Interest charged by the Bank of England to commercial banks
• This underlying structure sounds deep
• Word with "ball" or "board"
• Diamond component?