Related Clues:

• Quick but relevant
• Perfunctory, but briefly enjoyable?
• Way of writing that's not hard - running smoothly, pleasantly brief
• Of inadequate duration (ironic)
• Whisky, say, with pudding is nice while it lasts
• Like petticoat-tails, unexpectedly brief
• It's fine, just for the moment
• Brandy, perhaps, with dessert -- nice while it lasts
• During film, Dr Watson appears terribly abrupt
• Tiny bit of evidence in retrospect for rich brief
• Gin, say, with dessert can be pleasant but brief
• Quick to polish off whisky, possibly with dessert
• Efficiently brief
• Brief impolite type as well as those in 30 across
• As miniature chocolate might be -- in a nutshell?