Possible Clues:

• Trivia (informal)
• Sale being in two parts is of no consequence
• Piddling half-pint?
• Things of no importance in glass?
• Trivial matter
• Thing considered unimportant
• Local issue that's not serious
• Trivia — sell amber (anag)
• A large one? No, but you can ask the barman for it - by comparison, it's not worth much!
• Short busy worker on bottom of ladder is of no importance