Possible Clues:

• Contents of a well
• Bic filler
• Part of a squid's arsenal
• Sign, slangily
• 'The South would go down with this all right, by the sound of it (3)'
• Tattooing fluid
• Substance of a newspaper article?
• Squid's weapon
• Could this sort of ling give one a suggestion?
• Tattoo liquid