Related Clues:

• Hydrogen, for one
• Type of fuel
• Chit-chat
• Pump output
• Word after mustard or natural
• Wok coater
• Fill 'er up filler
• Krypton or radon, e.g.
• Crude from a well
• Squeak-stopping application
• Product from the islands?
• Olive or corn product
• Crude, e.g.
• Something struck
• Vapour