
1) Boat poles 2) Bonaventures 3) Boom sites 4) Brig pair 5) Caravel features 6) Clipper parts 7) Clipper ship poles 8) Clipper supporters 9) Clipper trio 10) Flag holders 11) Flag places 12) Flag wavers at sea 13) Galleon poles 14) Galleon spars 15) Gin poles 16) Guys may be attached to them 17) Harbor poles
Found on
https://www.crosswordclues.com/clue/masts

1) Spars
Found on
https://www.crosswordclues.com/clue/masts
No exact match found.