Related Clues:

• A black mark or indecent talk
• Dirt or obscenity
• A curse or solemn declaration
• Flake of soot or indecent talk
• A curse - or a pledge
• Indecent talk - black mark
• 'Profane, or solemn expression (4)'
• Swearword or solemn promise
• You'd swear this would get one round to a broken hat
• You'd swear that this was a hot one
• You'd swear that this begins to be like 14 down
• Could you put that damn thing on inside your weapon?
• You'd swear that was a hot mixture
• You'd swear there's nothing at the start of 11 across here
• You'd swear this was a 2 down mixture