Possible Clues:

• A case of agony for the non-drinker
• Paper holder
• That ace (anag.)
• Diplomat not completely connected
• Junior official, a non-drinker and suffering for it
• A case of the sore a non-drinker gets
• Joined most of the case
• That's a case of one connected with the mission
• Nongrammatical case
• Might be a case of pain for one that does not drink