Man on board a chivalrous warrior (6)
I believe the answer is:
knight
This clue could be a double definition.
'man on board' is the first definition.
(chess piece - man can mean a chess piece)
'a chivalrous warrior' is the second definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for knight that I've seen before include "Chess piece or non-hereditary English peer" , "Heroic champion" , "Holder of non-hereditary title in UK" , "In Britain, a person honoured by the sovereign for personal merit" , "Rank below baronet" .)