Possible Clues:

• Muslim woman's head covering
• Ibtihaj Muhammad won an Olympic medal while wearing one
• Cloth with which to cover onion bhaji when cooked
• Cover for head of airline taken up with what KLM's after
• Muslim woman's head cover
• Cover simmering bhaji
• Headgear for some Muslims
• Muslim hair covering
• Certain veil
• A cover-up in hospital: only a single vaccination