The Times Concise puzzle clues 2015 Dec 23

• Addition to diner's bill Crossword Clue
• A language of Nigeria Crossword Clue
• Australian airline Crossword Clue
• Back Crossword Clue
• Cereal plant Crossword Clue
• Choose by voting Crossword Clue
• Class such as female or male Crossword Clue
• Cut (a mark) into a surface Crossword Clue
• Hindu hereditary class Crossword Clue
• — Jones, English architect Crossword Clue
• Large bird Crossword Clue
• Not honourable; base Crossword Clue
• Offload (marine cargo) Crossword Clue
• Pub runner Crossword Clue
• Revoke (a law/order) Crossword Clue
• Travel or entry permit Crossword Clue