Related Clues:

• Quill liquid
• The write stuff
• Fluid from squid
• Squid liquid
• What e-books don't have in them
• Printing liquid
• Put up, as wallpaper
• Spend time together, informally
• Filler of a black well
• Sketcher's buy
• What PR guy gets for new release
• Ballpoint fill
• Bic fluid
• It's usually not erasable
• Tattoo, in slang