Possible Clues:

• Weed not half harmful as pest damaging crops
• Small beetle with long snout
• See 12
• Beetle sometimes found in flour
• Small beetle that feeds on plants
• You and I are about, but it goes against the grain!
• … Beatle, on Radio 6 — go live outside
• You and I find depravity with one of The Beatles say
• Small kind of 15 down
• You and I not good for one of the beetles