Possible Clues:

• Manifest
• Act as witness at critical trial
• Declare to be genuine or true
• Present at the match, so one can witness it
• Witness slattern shedding outer clothing on street
• A time trial might provide evidence
• Witness most portly female getting abandoned
• To be present at the international is to witness it
• Witness, most obese, losing face
• Witness how one is watching the match, so it seems