Possible Clues:

• Pub drink could make you stagger and be ill, we hear
• One drunk is concerning a flyer after takeoff?
• Beer makes you stagger and feel ill, so we're told
• All are getting drunk imbibing English beer
• The RA in CAMRA
• Extraordinarily pleasurable pubs - with this?
• Cask-conditioned beer served traditionally
• Objective of campaign - note, more than half the battle is over
• On which all are drunk, at rear of lounge?
• CAMRA interest