Possible Clues:

• It is not nice and is not after tea
• It is not, in short, what leaves a bad taste in your mouth
• It is not, in short, in bad taste
• Flaw in Titan
• Old-fashioned contraction
• "'Tis!" response
• Blemish denied by Londoner
• A little tea is not with such a rotten taste
• Anatomical in-between area, slangily
• Disgrace trace