Possible Clues:

• Officer associated with bloomer by Rao
• Old book on pub crawl addiction
• Complex term former pupil used upfront
• New bosses spouting tediously about current preoccupation
• Russian banker heading meeting has a hang-up
• Bob's final couple spell 'idée fixe'
• Died before committee meeting — there's a thing!
• Hang-up
• All-absorbing idea
• Fixed idea of old boy prior to meeting