Possible Clues:

• Household manager has respect initially for one European language
• Celt's back in race, perhaps: runs inside
• Celt to put in gun
• British school language
• French person’s back at the races, perhaps, taking in run
• Continue gambling? That's about right for Norman's neighbour
• Bronte novel, not in English, in manner of speaking
• Language that's bent or contorted
• Celtic tongue of France
• Brother returned short letter to person from Brest