There were a few different answers that I accepted, or gave partial credit for on this puzzle. It was surprising how many answers there were that fit, or almost fit. Each of the solutions listed below earned either full or partial credit.

Solution: APPLE
Bobbing for apples at Halloween
Apple Juice
And a type of worm (codling moth or apple worm)

Solution: SPIDER
Spiders are associated with Halloween
An Australian drink
A search engine spider or WORM

Solution: BLOOD
Blood is associated with Halloween
BLOODy Mary is a kind of drink
Blood WORM in horses

Solution: TAPE
MASKING is popular at Halloween.
SCOTCH is a kind of drink.
Tape WORM is a kind of intestinal parasite.

Finally, ZOMBIE
ZOMBIES are associated with Halloween
A ZOMBIE is a drink
ZOMBIES is a term used to refer to computers which have been attacked by viruses or worms.