The words in each set have a common connection, something that bonds all three of them in some way, perhaps shared features or maybe it's characteristics...and then again it could be a manifestation of common attributes.
A question mark after a clue denotes word play or trickery is afoot.
Can you find a Commonality?
1. AN AUDIENCE, AN ENVELOPE, A GOLF BALL
= 2. CONSPIRATORS, NOVELS, CEMETERIES
= 3. A JOKE, A SAFE, A WHIP
= 4. A CAR, A TREE, AN ELEPHANT
= 5. DAYS, CONTINENTS, SEAS
6. A SNOW STORM IN FLORIDA, A HULA HOOP WITH A NAIL IN IT, THE USS ADAMS?
= 7. A HARDWARE STORE, THE PANAMA CANAL, A JEWISH DELI
= 8. MARIGOLD, MUSTARD, CANARY
= 9. EYES, EGGS, A LOAD OF LAUNDRY
= 10. JOHNNIE CASH, ZORRO, DRACULA