Possible Clues:

• Damage, as one's reputation
• Become discolored, as silverware
• Dull sailor is in new hotel
• Sully, as a reputation
• Damage, as a reputation
• Hasn't RI somehow become dull!
• Stain or blemish as with silverware
• Cause to lose lustre, say silver
• Become dull and discoloured
• Stain, metal or reputation