Possible Clues:

• In olden days, he was trained in arms and chivalry
• King nearly beginning to take piece
• Chivalric warrior
• Chess horse
• Man on board reported period of darkness
• Initially keen novice is giving heed to champion
• Suspect recalled trapping good man
• Galahad, say
• Man that can jump on board?
• Heroic champion of a cause or principle