How to teleport an item to a player in Minecraft 1.13?

You should just be able to use:

tp @e[tag=bigapple] @s

and that will teleport any entity with the tag 'bigapple' to the executor of the command.

NOTE: Ensure this is being run on the command line, not in a command block. @s will not work in a command block without the appropriate selector.

You're running the @e identifier as a tag, not a name. From looking at it that's what I can see. Just change what you're teleporting as a tag to a name instead, as you haven't given the "Big Apple" a tag, only a name, so it can't teleport what to the game technically doesn't exist.

Hope that helps!

You can use this command:

/tp @e[type=item,limit=1,name=item_name] @p

It is example command:

/tp @e[type=item,limit=1,name=Stone] @p