Luffs

4 clues
Sails nearer the wind
Sails close to the wind
Parts of fore-and-aft sails
Turns toward the wind: Naut.
Similar answers:
Aaaautoclub
Aalu
Abaculus
Abadwaytolunch
Ablue
Abluent
Ablur
Ablush
Ablution
Absolut
Absolute
Absolutebliss
Absoluteceiling
Absolutegravity
Absolutely
Absolutelyright
Absoluteminimum
Absolutemonarch
Absolutemuscat
Absolutepitch