Possible Clues:

• An aptness developed along the way
• Way of capturing pawn
• By the way, in France it¿s a small measure to succeed worker
• Incidentally, in the course of doing something else
• Nantes spa built by the way, in France
• Knight captured by peasants — wrongly — in this move?
• How some chess captures are made
• Incidentally, it has an aptness as an anagram
• Revolting peasants captured knight, by the way
• Unled soldiers overtake worker by the way