Possible Clues:

• Rye, perhaps, welcomes British intellectual
• Appealing to brainiacs
• Brainy brother drinking rye? The opposite
• Intellectual in Clare gets real about brother
• Intellectual brother in Rye?
• Half serving of bran added to grain of loaf
• Intelligent British farmer finally feeding agricultural crop
• Intellectual finds bromine in food
• Corn possibly restricting British intellectual
• Intelligent English barrister's case in time college lecturer originally absorbs