Inspired by this tweet.

In order for this market to apply, the clone must be of someone who was known to be highly intelligent or effective in some cognitive domain. The clone must reach an age where they can be expected to communicate about intellectual things. They also must be concious and able to communicate in some way. e.g. if a clone enters a vegitative state as a baby and is kept on life support for many years, they don't count.

In order to resolve YES, the clone needs to demonstrate similar capabilities. Of course they don't need to do anything as groundbreaking as the original person; a clone of Einstein obviously couldn't discover general relativity again. But they need to seem like they have a similar IQ or people skills or whatever the original person was known for.