Possible Clues:

• Long sword
• Weapon for 16-Across
• "Dubbed with unhatched ––, and on carpet consideration" (Twelfth Night)
• The point of this is that it's for the artist on the jetty
• Narrow sword
• The point of this is that the artist gets onto this at the seaside
• Sword type
• Describing a certain type of wit
• Weapon found where the soldiers disembarked?
• How the artist gets to the noble sound out to sea