Lead-in to plane (4)
I believe the answer is:
aqua
(Other definitions for aqua that I've seen before include "Water; pale blue colour" , "which supports boats?" , "Latin for water" , "Tint of blue" , "- - Libra" .)
I believe the answer is:
aqua
(Other definitions for aqua that I've seen before include "Water; pale blue colour" , "which supports boats?" , "Latin for water" , "Tint of blue" , "- - Libra" .)