Possible Clues:

• Word with pipe or smoke
• Film turkey
• Belly-flop at the box office
• Incendiary device
• This may go off as with a tic, and with pomp. in a manner of speaking (4)
• An explosive device
• Blockbuster, e.g.
• Hail Mary pass, usually
• Fail to get laughs at The Improv
• Close on opening night