Possible Clues:

• It's insects, strangely, this learned person knows about
• Person conducting experiments
• May be crafty but not arty
• Person experimenting in a laboratory
• One may be artful, but not for the arts
• It's nicest for one engaged in specialist studies
• 37-Across, e.g.
• One for the oratory of the lab?
• Unusual insect - it's puzzled entomologist maybe
• One does not go in for 32 across, perhaps