Possible Clues:

• I guess ID may be tricky with this
• Gloss over guides travelling around one school
• Give a false picture to worried guides protecting One Direction
• Conceal (a feeling)
• Pretence
• I issued new clasps good for mask
• Record clip has all the appearance of cover-up
• Issue I'd sorted out to keep gelding's head in front
• Dress up small vocal characters trailing princess
• Frequent Sherlock ploy