I've used honey, molasses and chocolate syrup on Burley ... didn't care for honey as it seemed to burn "hot".
The only clove tobacco I've smoked was Clove Mapacho from the amazon but it was so strongly scented that I made it into snuff instead.
I usually mist my tobacco with water and honey (1 teaspoon per liter) but this doesn’t make a big change in flavour... I still believe that the honey acts as a preservative, true or not. The most common flavorings in the industry are liquorice, cocoa, vanilla and coffee, along with a bunch of chemicals.
As south east asians, clove cigarette is one of my favourite cigarette. Most of the clove cigarette in the market are mixed with lot of flavoring and making it candy like cigarette. (They even dip the butt in saccharine) So it is hard to replicate their recipe. I tried making my own clove cigarette before but it is not so good. Maybe the mix ratio isn't correct. They used very high amount of clove; up to 40% mix.