A quote from a person I think you are all familiar with.
If you need a clue ask the group to send you a letter to your private reply.
4 minutes good
3 minutes excellent
2 minutes exceptional
90 seconds superior
HINT: SOLVE FOR THE AUTHOR FIRST AND THIS ONE IS EASY. PLEASE DO NOT DEPICT THE AUTHOR OR SUBJECT IN YOUR CLUES, WHICH WOULD BE A GIVEAWAY.
Think Tintinnabulation