Possible Clues:

• Suffocates
• Stifles
• Tom and Dick, but no Harry
• Mum in ship suffocates
• It takes one's breath away to have southern 24 acrosses
• Overwhelms
• Ma in the ship takes your breath away
• Fair takes your breath away to find Ma among the saints!
• Overwraps
• It takes your breath away to find her in 35 across