Related Clues:

• Portamento, in music
• Run smoothly
• Travel over the bounding main
• Fly (through)
• Spanker, e.g.
• Ply the seas
• Type of boat
• Dance movement
• Clipper feature
• Kind of boat
• Spinnaker, for one
• Go smoothly
• Flow smoothly
• Catch the wind
• Attack, with 'into'