Possible Clues:

• It's unimaginative of ants to take heart from gulag
• Claim four made up is pretty unoriginal
• Unimaginative Lucia from Knock?
• Too predictable, as a plot
• Car series with Clarkson, initially, according to a blueprint?
• Produced by mechanically followed rules
• Unimaginative motor-racing clubs
• Grand Prix about slavishly following rules
• Predictable abuse of rum not for the clergy
• According to prescription, cast's top class and non-clerical