Candy crush has shaped boards, and is thus a clone of any of the other similar match 3 games. Candy crush has some different power up me hanics too.
There are a gajillion match 3 games and they're all similar, but that doesn't make them all clones. Especially when they're as different as candy crush and bejeweled are.
Except, Candy Crush does go beyond simply being a match 3 game, in that all the base mechanics as far as what happens when you match 3, 4, and 5, are pretty much lifted exactly as-is from Bejeweled.
...they're the same as very many other match three games.
Candy Crush includes special actions when you match 2 power ups. Bejeweled clears the board if you match two spinning cubes (the result of a match 5) but other than that matching two power ups doesn't do anything special.